甲是8,乙是5,甲比乙多几分之几、乙比甲少几分之几?
\u7532\u6570\u662f\u4e59\u6570\u76845/8\uff0c\u7532\u6bd4\u4e59\u5c11\u51e0\u5206\u4e4b\u51e0\u51e0\u5206\u4e4b\u51e0\uff0c\u4e59\u6bd4\u7532\u591a( )%\uff0c\u7532\u4e0e\u7532\u4e59\u548c\u7684\u6bd4\u662f\u7684\u6bd4\u662f(3/8 3/5 5/13
\u7532\u6570\u662f\u4e59\u6570\u76848\u5206\u4e4b5,\u7532\u6570\u6bd4\u4e59\u6570\u5c11(37.5)% \u4e59\u6570\u6bd4\u7532\u6570\u591a(60)%
甲比乙多五分之三,乙比甲少八分之三甲:(8-5)/5=3/5
乙:(8-5)/3=1
甲数比乙数多3/5、乙数比甲数少1
设甲比乙多的倍数为x, 乙比甲少的倍数为y, 则 5+5x=8 8-8y=5 解得,x=3/5 y=3/8
绛旓細鐢叉槸涔欑殑8梅5=8/5=160 涔欐槸鐢茬殑5梅8=5/8=62.5 鐢叉瘮涔欏160%-1=60 涔欐瘮鐢插皯锛8-5锛壝8=37.5%.
绛旓細8/5 3/5
绛旓細鍥炵瓟锛8/5 3/5
绛旓細鐢叉暟鏄8锛屼箼鏁鏄5锛岀敳鏁姣斾箼鏁板锛堬級鍒嗕箣锛堬級锛屼箼鏁版瘮鐢叉暟灏鍑犲垎涔鍑犮愯繃绋嬪拰涓轰粈涔堛
绛旓細鐢叉瘮涔欏锛氾紙8-5锛壝5=60% 绛旓細鐢叉瘮涔欏60%涔欐瘮鐢插皯锛氾紙8-5锛壝8=37.5% 绛旓細涔欐瘮鐢插皯37.5
绛旓細绗竴闂鐢叉槸涔鐨勭櫨鍒嗕箣鍑狅紵8/5*100%=160 绗簩闂竴鏄敳鐨勭櫨鍒嗕箣鍑狅紵5/8*100%=62.5 绗笁闂 鐢叉瘮涔欏鐧惧垎涔嬪嚑銆傦紙8-5锛/5*100%=60 绗洓闂 锛8-5锛/8*100%=37.5 绛 鍒嗗埆涓160% 62.5% 60% 37.5
绛旓細鐢叉暟鍜屼箼鏁扮殑姣鏄8姣5锛岀敳鏁姣斾箼鏁板鐧鍒嗕箣鍑锛屼箼鏁版瘮鐢叉暟灏戯紝鐧惧垎涔 瑙g瓟锛氾紙8-5锛➗8 =0.375 =37.5 锛8-5锛➗5 =0.6 =60
绛旓細宸茬煡鐢叉暟鏄8涔鏁版槸6锛岀敳鏁姣斾箼鏁板鍥鍒嗕箣涓銆傚洜涓轰箼鏁版瘮鐢叉暟灏8-6=2锛屼笖2鏄8鐨勫洓鍒嗕箣涓锛屾墍浠ヤ箼鏁版瘮鐢叉暟灏戝洓鍒嗕箣涓锛屾墍浠ョ敳鏁版瘮涔欐暟澶氬洓鍒嗕箣涓銆傚垎鏁板師鏄寚鏁翠綋鐨勪竴閮ㄥ垎锛屾垨鏇翠竴鑸湴锛屼换浣曟暟閲忕浉绛夌殑閮ㄥ垎銆傝〃鐜板舰寮忎负涓涓暣鏁癮鍜屼竴涓暣鏁癰鐨勬瘮锛坅涓篵鍊嶆暟鐨勫亣鍒嗘暟鏄惁灞炰簬鍒嗘暟瀛樺湪浜夎锛...
绛旓細鐢叉瘮涔灏3锛岋紙8-5锛壝8=3/8 涔欐瘮鐢插3锛岋紙8-5锛壝5=3/5
绛旓細鐢层佷箼涓ゆ暟鐨勬瘮鏄5:8,鍒鐢叉瘮涔灏 3/8 涔欐瘮鐢插3/5