256乘257分之5简算
=257X5/257一5/257=5一5/257=1023/257绛旓細濡傚浘
绛旓細鍥炵瓟锛200涔199鍒嗕箣198 =(199+1)脳198/199 =199脳198/199+1脳198/199 =198+198/199 =198鍙198/199 63涔64鍒嗕箣63 =(64-1)脳63/64=63-63/64=62鍙1/64
绛旓細30 脳 7/25 脳 40 脳 11/30 = 7/25 脳 40 脳 11 = 77/5 脳 8 = 616/5
绛旓細5銆佷節鍒嗕箣鍥涢櫎鍗佷簲鍒嗕箣鍥涢櫎浜屽崄浜=(4/9)梅(4/15)梅25=(4/9)x(15/4)x(1/25)=1/15 6銆佸洓鍒嗕箣涓夊姞鍥涘垎涔嬩竴涔涓夊垎涔嬩簩鍑忎笁鍒嗕箣浜 =3/4+(1/4)*(2/3)-2/3=3/4+(2/3)(1/4-1)=3/4+(2/3)(-3/4)=(3/4)(1-2/3)=(3/4)*(1/3)=1/4 7銆3闄や笁鍒嗕箣涓鍑...
绛旓細鍘熷紡=锛100+2锛*7/25 =100*7/25+2*7/25 =28+14/25 =28鍙25鍒嗕箣14
绛旓細16鍒嗕箣5*{锛10-2鍒嗕箣7锛夐櫎浠2鍒嗕箣13}闄や互5鍒嗕箣8 =5/16*6.5*2/13*5/8 =5/16*5/8 =25/128
绛旓細4鍒嗕箣1梅(3锛15鍒嗕箣7锛15鍒嗕箣8)=1/4梅锛3-1锛=1/4梅4 =16鍒嗕箣1 (8鍒嗕箣3锛4鍒嗕箣1)梅(1锛5鍒嗕箣2脳4鍒嗕箣3)=锛3/8+2/8锛壝凤紙1-3/10锛=5/8梅7/10 =28鍒嗕箣25 (9鍒嗕箣2锛6鍒嗕箣5)脳18锛50 =2/9脳18+5/6脳18+50 =4+15+50 =69 8鍒嗕箣13脳4鍒嗕箣25锛8鍒嗕箣3脳...
绛旓細25/6脳1/7脳1/5 =25/6脳1/5脳1/7 =5/6脳1/7 =5/42
绛旓細25鍒嗕箣7脳33鍒嗕箣5+25鍒嗕箣8+33鍒嗕箣17+33鍒嗕箣17脳25鍒嗕箣2 =7/25*5/33+8/25+17/33+17/33*2/25 =(7*5+8*33+17*25+17*2)/(25*33)=(35+264+459)/825 =15446/825
绛旓細绗竴涓瓑浜259 511=73*7 373737=37*10101 737373=73*10101 绾︽帀涔嬪悗灏辩瓑浜庢槸鍦ㄧ畻37*7=259 绗簩涓夯鐑︿綘鐢ㄦ暟瀛楄〃绀哄ソ涔堬紵鍥犱负杩欎釜鍙互鏂垚寰堝涓嶅悓鐨勫紡瀛愬晩銆傘傘備綘鐨勮〃杈惧緢鏈夐棶棰樸傘傘傚鏋滅敤鏂囧瓧琛ㄧず鐨勮瘽浣犲簲璇ュ姞涓娾滅殑绉濃滅殑鍟嗏濈瓑绛 ...
