五年级下学期分数加减法口算题200道，附答案 五年级上册数学分数加减法口算题200道，带答案！
\u4e94\u5e74\u7ea7\u4e0b\u518c\u5206\u6570\u53e3\u7b97\u9898200\u9053\u5e26\u7b54\u68480.25\u00d78.6\u00d7489+456-785%+.3/7\u00d749/9-4/39\u00d715/36+1/272\u00d75/6\u20132/9\u00d733\u00d75/4+1/494\u00f73/8\u20133/8\u00f7695/7\u00d75/9+3/7\u00d75/96/2-\uff083/2+4/5\uff098+\uff081/8+1/9\uff098\u00d75/6+5/61/4\u00d78/9-1/310\u00d75/49+3/141.5\u00d7\uff081/2+2/3\uff092\uff0f9\u00d74/5+8\u00d711/53.1\u00d75/6\u20135/64/7-\uff082/7\u201310/21\uff0919\u00d718\u201314\u00d72/75\u00d725/16+2/3\u00d73/44\u00d78/7\u20135/6\u00d712/157/32\u20133/4\u00d79/242/3\u00f71/2\uff0d1/4\u00d72/52\uff0d6/13\u00f79/26\uff0d2/32/9\uff0b1/2\u00f74/5\uff0b3/810\u00f75/9\uff0b1/6\u00d741/2\u00d72/5\uff0b9/10\u00f79/205/9\u00d73/10\uff0b2/7\u00f72/51/2\uff0b1/4\u00d74/5\uff0d1/83/4\u00d75/7\u00d74/3\uff0d1/223\uff0d8/9\u00d71/27\u00f71/278\u00d75/6\uff0b2/5\u00f741/2\uff0b3/4\u00d75/12\u00d74/58/9\u00d73/4\uff0d3/8\u00f73/45/8\u00f75/4\uff0b3/23\u00f79/113/7\u00d749/9-4/38/9\u00d715/36+1/2712\u00d75/6\u20132/9\u00d738\u00d75/4+1/46\u00f73/8\u20133/8\u00f764/7\u00d75/9+3/7\u00d75/95/2-\uff083/2+4/5\uff097/8+\uff081/8+1/9\uff099\u00d75/6+5/63/4\u00d78/9-1/37\u00d75/49+3/146\u00d7\uff081/2+2/3\uff098\u00d74/5+8\u00d711/531\u00d75/6\u20135/69/7-\uff082/7\u201310/21\uff095/9\u00d718\u201314\u00d72/74/5\u00d725/16+2/3\u00d73/414\u00d78/7\u20135/6\u00d712/1517/32\u20133/4\u00d79/243\u00d72/9+1/35/7\u00d73/25+3/73/14\u00d7\u00d72/3+1/61/5\u00d72/3+5/69/22+1/11\u00f71/25/3\u00d711/5+4/345\u00d72/3+1/3\u00d7157/19+12/19\u00d75/61/4+3/4\u00f72/38/7\u00d721/16+1/2101\u00d71/5\u20131/5\u00d7211\u300180\u5206\u4e4b2\u00d74=2/20=1/102\u30019\u5206\u4e4b7\u00d73=7/33\u300125\u5206\u4e4b2\u00d75=2/54\u300170\u5206\u4e4b7\u00d7140=145\u30015\u5206\u4e4b3\u00d77=21/56\u30017\u5206\u4e4b8\u00d77=87\u30012\u5206\u4e4b7\u00d79=63/28\u30019\u5206\u4e4b7\u00d72=14/99\u30014\u5206\u4e4b2\u00d72=110\u300114\u5206\u4e4b7\u00d74=14/7=211\u300120\u5206\u4e4b4\u00d75=112\u30017\u5206\u4e4b8\u00d72=16/713\u30018\u5206\u4e4b1\u00d72=1/414\u3001900\u5206\u4e4b1\u00d7100=1/10015\u3001268\u5206\u4e4b1\u00d74=1/6716\u3001480\u5206\u4e4b3\u00f72=3/96017\u30014\u5206\u4e4b2\u00f72=1/418\u30015\u5206\u4e4b1\u00f78=1/4019\u300110\u5206\u4e4b6\u00f72=3/1020\u30014\u5206\u4e4b7\u00f78=7/3221\u300156\u5206\u4e4b3\u00f76=1/11222\u300137\u5206\u4e4b5\u00f71=5/3723\u30017\u5206\u4e4b8\u00f72=4/724\u30019\u5206\u4e4b7\u00f73=7/2725\u300110\u5206\u4e4b3\u00f75=3/5026\u30019\u5206\u4e4b5\u00f75=1/927\u30018\u5206\u4e4b4\u00f78=428\u30014\u5206\u4e4b3\u00f75=3/2029\u30019\u5206\u4e4b4\u00f72=2/930\u300123\u5206\u4e4b7\u00f76=7/13831\u30015\u5206\u4e4b4+5\u5206\u4e4b8=12/532\u30018\u5206\u4e4b7+8\u5206\u4e4b1=133\u30014\u5206\u4e4b3+8\u5206\u4e4b1=7/834\u30017\u5206\u4e4b4+8\u5206\u4e4b2=46/56=23/2835\u30012\u5206\u4e4b7+10\u52061=36/10=18/536\u30017+7\u5206\u4e4b8=7\u53c87\u5206\u4e4b837\u30015\u5206\u4e4b7+5\u5206\u4e4b3=238\u30019+4\u5206\u4e4b3=9\u53c84\u5206\u4e4b339\u30014\u5206\u4e4b1+4\u5206\u4e4b1=1/240\u30018\u5206\u4e4b1+7\u5206\u4e4b1=13/5641\u30016\u5206\u4e4b7+7\u5206\u4e4b1=55/4242\u30011+6\u5206\u4e4b2=1\u53c83\u5206\u4e4b143\u30017\u5206\u4e4b5+5\u5206\u4e4b1=32/3544\u30015\u5206\u4e4b6+3\u5206\u4e4b4=38/1545\u30011+7\u5206\u4e4b5=1\u53c87\u5206\u4e4b546\u30015\u5206\u4e4b1-6\u5206\u4e4b1=1/3047\u30014\u5206\u4e4b8-1=148\u30015\u5206\u4e4b3-5\u5206\u4e4b1=2/549\u300115\u5206\u4e4b9-2\u5206\u4e4b1=1/1050\u30011-8\u5206\u4e4b1=7/851\u30013\u5206\u4e4b8-5\u5206\u4e4b1=37/1552\u30018-2\u5206\u4e4b1=15/253\u30015\u5206\u4e4b7-4\u5206\u4e4b3=13/2054\u30012-2\u5206\u4e4b19=1/255\u30014\u5206\u4e4b1-4\u5206\u4e4b1=056\u30019\u5206\u4e4b7-4\u5206\u4e4b3=1/3657\u30015\u5206\u4e4b9-1=4/558\u300172\u5206\u4e4b50-8\u5206\u4e4b1=41/7259\u30019\u5206\u4e4b4-9\u5206\u4e4b3=1/960\u300148\u5206\u4e4b16-5\u5206\u4e4b1=2/151+1/5+1/6-1/12-1/1=?1+1/5+1/6-1/12-1/2=?1+1/5+1/6-1/12-1/3=?1+1/5+1/6-1/12-1/4=?1+1/5+1/6-1/12-1/5=?1+1/5+1/6-1/12-1/6=?1+1/5+1/6-1/12-1/7=?1+1/5+1/6-1/12-1/8=?1+1/5+1/6-1/12-1/9=?1+1/5+1/6-1/12-1/10=?7/8+\uff081/8+1/9\uff099\u00d75/6+5/63/4\u00d78/9-1/37\u00d75/49+3/146\u00d7\uff081/2+2/3\uff098\u00d74/5+8\u00d711/531\u00d75/6\u20135/69/7-\uff082/7\u201310/21\uff095/9\u00d718\u201314\u00d72/74/5\u00d725/16+2/3\u00d73/414\u00d78/7\u20135/6\u00d712/1517/32\u20133/4\u00d79/243\u00d72/9+1/35/7\u00d73/25+3/73/14\u00d7\u00d72/3+1/61/5\u00d72/3+5/69/22+1/11\u00f71/25/3\u00d711/5+4/345\u00d72/3+1/3\u00d7157/19+12/19\u00d75/61/4+3/4\u00f72/38/7\u00d721/16+1/2101\u00d71/5\u20131/5\u00d72150\uff0b160\u00f740\uff0858+370\uff09\u00f7\uff0864-45\uff09120-144\u00f718+35347+45\u00d72-4160\u00f75234\uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff0995\u00f7\uff0864-45\uff09178-145\u00f75\u00d76+42420+580-64\u00d721\u00f728812-700\u00f7\uff089+31\u00d711\uff09\uff08136+64\uff09\u00d7\uff0865-345\u00f723\uff0985+14\u00d7\uff0814+208\u00f726\uff09\uff08284+16\uff09\u00d7\uff08512-8208\u00f718\uff09120-36\u00d74\u00f718+35\uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09(6.8-6.8\u00d70.55)\u00f78.50.12\u00d74.8\u00f70.12\u00d74.8\uff083.2\u00d71.5+2.5\uff09\u00f71.6\uff082\uff093.2\u00d7\uff081.5+2.5\uff09\u00f71.66-1.6\u00f74=5.38+7.85-5.37=7.2\u00f70.8-1.2\u00d75=6-1.19\u00d73-0.43=6.5\u00d7\uff084.8-1.2\u00d74\uff09=0.68\u00d71.9+0.32\u00d71.910.15-10.75\u00d70.4-5.75.8\u00d7\uff083.87-0.13\uff09+4.2\u00d73.7432.52-\uff086+9.728\u00f73.2\uff09\u00d72.5[\uff087.1-5.6\uff09\u00d70.9-1.15]\u00f72.55.4\u00f7[2.6\u00d7\uff083.7-2.9\uff09+0.62]12\u00d76\u00f7\uff0812-7.2\uff09-6\uff084\uff0912\u00d76\u00f77.2-62/1*2=13/1*3=13/2*3=23/1*6=24/3*8=65/3*20=127/3*14=68/7*40=354/3*16=129/5*27=152/1*30=1512/7*24=1430/1*30=151/9*102=1819/9*76=364/9*8=185/8*90=14499/98*99=983/14*6=287/1*28=410/1*90=95/3*105=6319/7*38=145/1*25=58/19*16=3861/60*122=1207/2*28=86/1*48=89/7*18=1425/7*100=289/5*81=458/9*16=1812\u00f73/5=12\u00d7\uff085/3\uff099\u00f76/7=9\u00d7\uff087/6\uff0930\u00f75/6=30\u00d7\uff086/5\uff094\u00d7\uff083/2\uff09=4\u00f72/3\uff084\uff09\u00f75/7=4\u00d77/53\u00f74/5=3\u00d75/4\uff0824\uff09\u00f77/16=24\u00d7\uff0816/7\uff09A\u00f7C/B=A\u00d7B/C4\u00f74/5=56\u00f73/4=810\u00f72/5=2518\u00f74/9=81/24\u00d74/5=16/56\u00d73/4=18/410\u00d72/5=418\u00d74/9=83\u00f73/4=42\u00f71/3=66\u00f74/5=15/21\u00f75/7=7/53/4\u00f73=1/41/3\u00f72=1/64/5\u00f76=2/155/7\u00f71=5/72/1*2=13/1*3=13/2*3=23/1*6=24/3*8=65/3*20=127/3*14=68/7*40=354/3*16=129/5*27=152/1*30=1512/7*24=1430/1*30=151/9*102=1819/9*76=364/9*8=185/8*90=14499/98*99=983/14*6=287/1*28=410/1*90=95/3*105=6319/7*38=145/1*25=58/19*16=3861/60*122=1207/2*28=86/1*48=89/7*18=1425/7*100=289/5*81=458/9*16=180.25\u00d78.6\u00d7489+456-785%+.3/7\u00d749/9-4/39\u00d715/36+1/272\u00d75/6\u20132/9\u00d733\u00d75/4+1/494\u00f73/8\u20133/8\u00f7695/7\u00d75/9+3/7\u00d75/96/2-\uff083/2+4/5\uff098+\uff081/8+1/9\uff098\u00d75/6+5/61/4\u00d78/9-1/310\u00d75/49+3/141.5\u00d7\uff081/2+2/3\uff092\uff0f9\u00d74/5+8\u00d711/53.1\u00d75/6\u20135/64/7-\uff082/7\u201310/21\uff0919\u00d718\u201314\u00d72/75\u00d725/16+2/3\u00d73/44\u00d78/7\u20135/6\u00d712/157/32\u20133/4\u00d79/242/3\u00f71/2\uff0d1/4\u00d72/52\uff0d6/13\u00f79/26\uff0d2/32/9\uff0b1/2\u00f74/5\uff0b3/810\u00f75/9\uff0b1/6\u00d741/2\u00d72/5\uff0b9/10\u00f79/205/9\u00d73/10\uff0b2/7\u00f72/51/2\uff0b1/4\u00d74/5\uff0d1/83/4\u00d75/7\u00d74/3\uff0d1/223\uff0d8/9\u00d71/27\u00f71/278\u00d75/6\uff0b2/5\u00f741/2\uff0b3/4\u00d75/12\u00d74/58/9\u00d73/4\uff0d3/8\u00f73/45/8\u00f75/4\uff0b3/23\u00f79/113/7\u00d749/9-4/38/9\u00d715/36+1/2712\u00d75/6\u20132/9\u00d738\u00d75/4+1/46\u00f73/8\u20133/8\u00f764/7\u00d75/9+3/7\u00d75/95/2-\uff083/2+4/5\uff097/8+\uff081/8+1/9\uff099\u00d75/6+5/63/4\u00d78/9-1/37\u00d75/49+3/146\u00d7\uff081/2+2/3\uff098\u00d74/5+8\u00d711/531\u00d75/6\u20135/69/7-\uff082/7\u201310/21\uff095/9\u00d718\u201314\u00d72/74/5\u00d725/16+2/3\u00d73/414\u00d78/7\u20135/6\u00d712/1517/32\u20133/4\u00d79/243\u00d72/9+1/35/7\u00d73/25+3/73/14\u00d7\u00d72/3+1/61/5\u00d72/3+5/69/22+1/11\u00f71/25/3\u00d711/5+4/345\u00d72/3+1/3\u00d7157/19+12/19\u00d75/61/4+3/4\u00f72/38/7\u00d721/16+1/2101\u00d71/5\u20131/5\u00d7211\u300180\u5206\u4e4b2\u00d74=2/20=1/102\u30019\u5206\u4e4b7\u00d73=7/33\u300125\u5206\u4e4b2\u00d75=2/54\u300170\u5206\u4e4b7\u00d7140=145\u30015\u5206\u4e4b3\u00d77=21/56\u30017\u5206\u4e4b8\u00d77=87\u30012\u5206\u4e4b7\u00d79=63/28\u30019\u5206\u4e4b7\u00d72=14/99\u30014\u5206\u4e4b2\u00d72=110\u300114\u5206\u4e4b7\u00d74=14/7=211\u300120\u5206\u4e4b4\u00d75=112\u30017\u5206\u4e4b8\u00d72=16/713\u30018\u5206\u4e4b1\u00d72=1/414\u3001900\u5206\u4e4b1\u00d7100=1/10015\u3001268\u5206\u4e4b1\u00d74=1/6716\u3001480\u5206\u4e4b3\u00f72=3/96017\u30014\u5206\u4e4b2\u00f72=1/418\u30015\u5206\u4e4b1\u00f78=1/4019\u300110\u5206\u4e4b6\u00f72=3/1020\u30014\u5206\u4e4b7\u00f78=7/3221\u300156\u5206\u4e4b3\u00f76=1/11222\u300137\u5206\u4e4b5\u00f71=5/3723\u30017\u5206\u4e4b8\u00f72=4/724\u30019\u5206\u4e4b7\u00f73=7/2725\u300110\u5206\u4e4b3\u00f75=3/5026\u30019\u5206\u4e4b5\u00f75=1/927\u30018\u5206\u4e4b4\u00f78=428\u30014\u5206\u4e4b3\u00f75=3/2029\u30019\u5206\u4e4b4\u00f72=2/930\u300123\u5206\u4e4b7\u00f76=7/13831\u30015\u5206\u4e4b4+5\u5206\u4e4b8=12/532\u30018\u5206\u4e4b7+8\u5206\u4e4b1=133\u30014\u5206\u4e4b3+8\u5206\u4e4b1=7/834\u30017\u5206\u4e4b4+8\u5206\u4e4b2=46/56=23/2835\u30012\u5206\u4e4b7+10\u52061=36/10=18/536\u30017+7\u5206\u4e4b8=7\u53c87\u5206\u4e4b837\u30015\u5206\u4e4b7+5\u5206\u4e4b3=238\u30019+4\u5206\u4e4b3=9\u53c84\u5206\u4e4b339\u30014\u5206\u4e4b1+4\u5206\u4e4b1=1/240\u30018\u5206\u4e4b1+7\u5206\u4e4b1=13/5641\u30016\u5206\u4e4b7+7\u5206\u4e4b1=55/4242\u30011+6\u5206\u4e4b2=1\u53c83\u5206\u4e4b143\u30017\u5206\u4e4b5+5\u5206\u4e4b1=32/3544\u30015\u5206\u4e4b6+3\u5206\u4e4b4=38/1545\u30011+7\u5206\u4e4b5=1\u53c87\u5206\u4e4b546\u30015\u5206\u4e4b1-6\u5206\u4e4b1=1/3047\u30014\u5206\u4e4b8-1=148\u30015\u5206\u4e4b3-5\u5206\u4e4b1=2/549\u300115\u5206\u4e4b9-2\u5206\u4e4b1=1/1050\u30011-8\u5206\u4e4b1=7/851\u30013\u5206\u4e4b8-5\u5206\u4e4b1=37/1552\u30018-2\u5206\u4e4b1=15/253\u30015\u5206\u4e4b7-4\u5206\u4e4b3=13/2054\u30012-2\u5206\u4e4b19=1/255\u30014\u5206\u4e4b1-4\u5206\u4e4b1=056\u30019\u5206\u4e4b7-4\u5206\u4e4b3=1/3657\u30015\u5206\u4e4b9-1=4/558\u300172\u5206\u4e4b50-8\u5206\u4e4b1=41/7259\u30019\u5206\u4e4b4-9\u5206\u4e4b3=1/960\u300148\u5206\u4e4b16-5\u5206\u4e4b1=2/15
\u201c/\u201d=\u5206\u6570\u7ebf
1) 2/10+4/10=3/5
2) 11/14-8/14=3/14
3) 3/8+1/8=1/2
4\uff091/4+1/5=9/20
5) 4/11+5/11=9/11
6) 4/15+2/15=2/5
7) 9/10-3/10=6/10
8) 7/13+5/13=12/13
9) 6/13+5/13=11/13
10) 2/8+3/8=5/8
11) 9/13-9/13=0
12) 9/13+3/13= 12/13
13) 11/12-4/12=7/12
14) 14/15-3/15=11/15
15) 1/13+11/13=12/13
16) 2/15-2/15=0
17) 7/12+3/12=5/6
18) 12/15-9/15=1/5
19) 1/8+2/8=3/8
20) 6/7-6/7= 0
21) 10/13+2/13=12/13
22) 2/13+7/13=9/13
23) 1/11+8/11=9/11
24) 3/4-1/4= 1/2
25) 4/15+10/15=14/15
26) 12/14-4/14=4/7
27) 7/13+2/13=9/13
28) 8/13-1/13=7/13
29) 12/14-12/14=0
30) 12/13-6/13=6/13
31) 3/7+3/7=6/7
32) 7/9+1/9=8/9
33) 8/14+2/14=5/7
34) 10/13-8/13=2/13
35) 3/14-3/14=0
36) 1/5+3/5=4/5
37) 1/12+6/12=7/12
38) 5/9+3/9=8/9
39) 7/11-2/11=5/11
40) 12/15-4/15=8/15
41) 1/14+5/14=3/7
42) 7/12-2/12=5/12
43) 2/9+5/9=7/9
44) 13/15-1/15=4/5
45) 6/13-6/13=0
46) 7/14+2/14=9/14
47) 4/8-1/8=3/8
48) 6/8-4/8=1/4
49) 3/7-1/7=2/7
50) 7/10-6/10=1/10
51) 2/14+7/14=9/14
52) 2/12+2/12=1/3
53) 2/14+12/14=1
54) 7/15-6/15=1/15
55) 5/11+3/11=8/11
56) 3/11+1/11=4/11
57) 7/15+8/15=1
58) 6/7-1/7=5/7
59) 7/9-6/9=1/9
60) 3/15+10/15=13/15
61) 5/15-5/15=0
62) 2/12+7/12=3/4
63) 4/8+4/8=1
64) 4/13-3/13=1/13
65) 1/15+10/15=11/15
66) 6/15+1/15=7/15
67) 8/14-6/14=1/7
68) 12/14+1/14=13/14
69) 11/15+2/15=13/15
70) 3/13-2/13=1/13
71) 11/15-3/15=8/15
72) 4/14+5/14=9/14
73) 5/10-5/10=0
74) 6/14+1/14=1/2
75) 1/10+5/10=3/5
76) 8/10-4/10=2/5
77) 3/8+4/8=7/8
78) 2/7+5/7=1
79) 4/9-2/9=2/9
80) 4/12+3/12=7/12
81) 5/8-2/8=3/8
82) 4/13+5/13=9/13
83) 5/14+3/14=8/14
84) 1/14-1/14=0
85) 5/14+7/14=6/7
86) 5/9-5/9=0
87) 7/15+4/15=11/15
88) 12/13-1/13=11/13
89) 5/13-2/13=3/13
90) 1/12+9/12=5/6
91) 6/10-5/10=1/10
92) 4/9+4/9=8/9
93) 9/15-8/15=1/15
94) 7/14-6/14=1/14
95) 4/9+1/9=5/9
1/2+2/3=7/6
1/3+1/4=7/12
1/3+3/4=13/12
1/4+1/5=9/20
1/4+4/5=21/20
...
1/n + 1/n+1=n+n+1 / n*（n+1）
1/n-1 + n-1/n=n*（n-1)+1 / n*(n-1)
3/4+1/5=4/5 3/4-1/5=11/20 5/6+2/9=19/18 5/6-2/9=11/18 2/3+3/5=19/15
2/3-3/5=1/15 6/7+1/2=19/14 6/7-1/2=5/14 2/3+1/6=5/6 1/3+1/4=7/12
1/3-1/4=1/12 1/5+1/7=12/35 1/5-1/7=2/35 1/4+1/9=13/36 1/4-1/9=5/36
1/8+1/9=17/72 1/8-1/9=1/72 1/10+7/9=79/90 5/7-1/6=23/42 1-5/9=4/9
1/5+3/8=23/40 3/4+1/5=19/20 2/3-3/5=1/5 1-2/5=3/5 5/8-1/9=37/72
1/10-1/20=1/20 1/6+3/8=13/24 5/9-1/2=1/18 2/3+1/4=11/12 1/2+1/3=5/6
5/6+1/18=8/9 3/5-1/3=4/15 17/15-1/3=4/5 11/12-2/3=1/4 1/2-1/4=1/4
1/7-1/8=1/56 1/3-1/9=2/9 5/6-1/2=1/3 1-2/3=1/3 5/8-1/6=11/24
1/3+1/6=1/2 3/4-1/2=1/4 1/5+1/8=13/40 5/6+4/9=23/18 5/9-2/5=7/45
3/7+5/2=41/14 5/8+9/10=61/40 11/12-8/15=23/60 1/4+1/6=5/12 1/4-1/6=1/12
1-6/7=1/7 11/12-2/3=1/4 3/10+2/5=7/10 7/8-1/4=5/8 3/4+5/12=7/6
3/5-3/7=6/35 5/4-5/12=5/6 1/5-1/9=4/45 1/3-1/8=5/24 11/6-2/9=29/18
1/5+1/9=14/45 1-2/5=3/5 7/4+1/7=53/28 1-1/9=8/9 2/3-2/7=8/21
5/6+1/2=4/3 4/3-3/4=7/12 1-4/7=3/7 4/3+3/2=17/6 5/9+18/5=5/6
3/8+7/10+5/8=17/10 7/8-(1/8+3/4)=0 4/7+1/6-4/7=1/6
2-7/9-2/9=1 3/5+7/8+2/5=15/8 7/9-(1/9+1/3)=1/3
1/4+(2/5+3/4)=7/5 5/6-3/10+1/6-7/10=0 3/4+1/6-2/3=1/4
7/8-1/4+4/9=77/72 1-1/3+2/7=20/21 1/2+4/5-3/10=1
5/6-(2/3-1/9)=5/18 9/10-(3/4+1/8)=1/40 1/2+2/3-3/4=5/12
7/8-1/6+1/4=23/24 1-(3/4-2/9)=17/36 9/10-1/5-1/2=1/5
1/4+3/7+1/2=33/28 7/8-(2/3+1/6)=1/24 1-(1/3+3/5)=1/15
1/2+1/4+1/3=13/12 7/8+1/4+1/2=5/8 5/7-(4/7+1/9)=2/63
1-1/4-1/2=1/4 3/4-1/6-1/3=1/4 3/10+1/4+2/5=19/20
2/3+1/6+1/12=11/12 1-1/4-2/5=7/20 1/2+1/9+1/12=25/36
1/7+3/8+5/7=1/7+5/7+3/8=6/7+3/8=48/56+21/56=69/56
先分母相同进行运算，再约分
1-5/9-4/9=1-（5/9+4/9）=1-1=0
连减几个数，等于减去这几个数相加
4/11+5/6-4/11=4/11-4/11+5/6=0+5/6=5/6
同分母先进行运算
3/4-1/6+1/4=3/4+1/4-1/6=1-1/6=5/6
符号跟在后一个数前，移动时要带上符号
7/8-（1/5+1/3）=7/8-（3/15+5/15）=7/8-8/15=41/120
这个没有技巧，只能通分
1+（1/3-1/6）=1+（2/6-1/6）=1+1/6=1又1/6
通分时别忘分子也要乘
（1）7/12+2/12=9/12=3/4
（2）1/3+3/8=8/24+9/24=17/24
（3）2/3-2/5=10/15-6/15=4/15
（4）5/8+2/7=35/56+16/56=51/56
1) 4/14+8/14=6/7
2) 7/10+2/10=9/10
3) 4/7-3/7=1/7
4) 3/14+7/14=5/7
5) 4/11+5/11=9/11
6) 4/15+2/15=2/5
7) 9/10-3/10=6/10
8) 7/13+5/13=12/13
9) 6/13+5/13=11/13
10) 2/8+3/8=5/8
11) 9/13-9/13=0
12) 9/13+3/13= 12/13
13) 11/12-4/12=7/12
14) 14/15-3/15=11/15
15) 1/13+11/13=12/13
16) 2/15-2/15=0
17) 7/12+3/12=5/6
18) 12/15-9/15=1/5
19) 1/8+2/8=3/8
20) 6/7-6/7= 0
21) 10/13+2/13=12/13
22) 2/13+7/13=9/13
23) 1/11+8/11=9/11
24) 3/4-1/4= 1/2
25) 4/15+10/15=14/15
26) 12/14-4/14=4/7
27) 7/13+2/13=9/13
28) 8/13-1/13=7/13
29) 12/14-12/14=0
30) 12/13-6/13=6/13
如下：
（1）1/7+3/8+5/7=1/7+5/7+3/8=6/7+3/8=48/56+21/56=69/56
先分母相同进行运算，再约分。
（2）1-5/9-4/9=1-（5/9+4/9）=1-1=0
连减几个数，等于减去这几个数相加。
（3）4/11+5/6-4/11=4/11-4/11+5/6=0+5/6=5/6
同分母先进行运算。
（4）3/4-1/6+1/4=3/4+1/4-1/6=1-1/6=5/6
符号跟在后一个数前，移动时要带上符号。
（5）7/8-（1/5+1/3）=7/8-（3/15+5/15）=7/8-8/15=41/120
这个没有技巧，只能通分。
（6）1+（1/3-1/6）=1+（2/6-1/6）=1+1/6=1又1/6
通分时别忘分子也要乘。
乘除法
1、分数乘整数，分母不变，分子乘整数，最后能约分的要约分。
2、分数乘分数，用分子乘分子，用分母乘分母，最后能约分的要约分。
3、分数除以整数，分母不变，如果分子是整数的倍数，则用分子除以整数，最后能约分的要约分。
4、分数除以整数，分母不变，如果分子不是整数的倍数，则用这个分数乘这个整数的倒数，最后能约分的要约分。
5、分数除以分数，等于被除数乘除数的倒数，最后能约分的要约分。
2/3+1/3=1 3/4-1/4=1/2 27/51-10/51=17/51 1/4+5/12=2/3 5/11+1/4=31/44 1/3+1/5=8/15 2/3+1/3=1 5/3+7/6=17/6 2/3+3/5=19/15 1/4-1/9=5/36 5/8-1/9=37/72 1/2-1/4=1/4 5/9-2/5=7/45 3/4+5/12=7/6 2/3-2/7=8/21 4/3-3/4=7/12 2/8+3/8=5/8 7/12+3/12=5/6 1-6/13＝7/13 12/15-4/15＝8/15 1/14+5/14=3/7 3/15+10/15=13/15 （不喜勿喷）
1/2+1/3=5/6
1/2+2/3=7/6
1/3+1/4=7/12
1/3+3/4=13/12
1/4+1/5=9/20
1/4+4/5=21/20
五年级下册的那个5道分数加法和5道减法要约分，然后在4的方程。
绛旓細49銆5/12-1/12=4/12 50銆3/8+1/8=2/8
绛旓細5銆1/4+1/5=9/20 6銆1/4+4/5=21/20 7銆3/4+1/5=4/5 8銆3/4-1/5=11/20 9銆5/6+2/9=19/18 10銆5/6-2/9=11/18 11銆2/3+3/5=19/15 12銆2/3-3/5=1/15 13銆6/7+1/2=19/14 14銆6/7-1/2=5/14 15銆2/3+1/6=5/6 16銆1/3+1/4=7/12 17銆1/...
绛旓細49銆5/12-1/12=4/12 50銆3/8+1/8=2/8
绛旓細1銆3/4+1/5=4/5 2銆3/4-1/5=11/20 3銆5/6+2/9=19/18 4銆5/6-2/9=11/18 5銆2/3+3/5=19/15 6銆2/3-3/5=1/15 7銆6/7+1/2=19/14 8銆6/7-1/2=5/14 9銆2/3+1/6=5/6 10銆1/3+1/4=7/12 11銆1/3-1/4=1/12 12銆1/5+1/7=12/35 13銆1/5-...
绛旓細8) 7/13+5/13=12/13 9) 6/13+5/13=11/13 10) 2/8+3/8=5/8 11) 9/13-9/13=0 12) 9/13+3/13= 12/13 13) 11/12-4/12=7/12 14) 14/15-3/15=11/15 15) 1/13+11/13=12/13 16) 2/15-2/15=0 17) 7/12+3/12=5/6 18) 12/15-9/15=1/5 19) 1/8...
绛旓細1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = 0.51梅17= 32.8+19= 5.2梅1.3= 1.6脳0.4= 4.9脳0.7= 1梅5= 6梅12= 0.87-0.49= 17脳40= 100-63= 3.2+1.68= 2.8脳0.4= 14-7.4= 1.92梅0.04= 0.32脳500= 0.65+4.35= 10...
绛旓細鍒嗘暟鍔犲噺娉曡绠鍏蜂綋濡備笅锛1銆3/7 脳 49/9 - 4/3 2銆8/9 脳 15/36 + 1/27 3銆12脳 5/6 鈥 2/9 脳3 4銆8脳 5/4 + 1/4 5銆6梅 3/8 鈥 3/8 梅6 6銆4/7 脳 5/9 + 3/7 脳 5/9 7銆5/2 -锛 3/2 + 4/5 锛8銆7/8 + 锛 1/8 + 1/9 锛9銆9 脳 5...
绛旓細3/4+1/5=4/5 3/4-1/5=11/20 5/6+2/9=19/18 5/6-2/9=11/18 2/3+3/5=19/15 2/3-3/5=1/15 6/7+1/2=19/14 6/7-1/2=5/14 2/3+1/6=5/6 1/3+1/4=7/12 1/3-1/4=1/12 1/5+1/7=12/35 1/5-1/7=2/35 1/4+...
绛旓細7/15+4/9-2/3= 1/2+1/6+1/12= 13/12+1/4-1/5= 5/9-锛3/4-1/24锛= 1/6+1/10= 1/2+1/3= 3/8-1/5= 5/7+1/41= 2/1+32/1= 1/2+25/1= 1/6+/36-5/6= 3/9+9/4-12/9= 12/6+9/3-3/9= 4/8+2/12-12/2= 1/6+78/6+4/6= 2/4+14/46+...
绛旓細13) 1/12+11/12= 14) 4/15+8/15= 15) 8/12-2/12= 16) 6/13+5/13= 17) 8/10-8/10= 18) 5/14+2/14= 19) 4/15+7/15= 20) 9/15-7/15= 21) 7/12-2/12= 22) 7/11-1/11= 23) 6/7-6/7= 24) 13/14-9/14= 25) 7/14-1/14= 26) 3/13+8/13= 27) 4/12-...
