甲比乙多或少几分之几关系如何分析 甲数比乙数多或少几分之几或百分之几。已知单位一的量，求另一个...
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甲比乙多几分之几，算式为：
（甲-乙）/乙
甲比乙少几分之几，算式为：
（乙-甲）/乙
这类题有一种模式:甲=乙ⅹ(1±n/m)
即"比"改成"="，在"1"多加少减n/m。
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绛旓細鍒嗘瀽:棣栧厛瑕佹槑纭袱鐐癸紝1.鐢叉瘮涔欏鍑犲垎涔嬪嚑灏辨槸锛堢敳-涔欙級/涔; 2.涔欐瘮鐢插皯鍑犲垎涔嬪嚑灏辨槸锛堢敳-涔欙級/鐢銆傛妸鐢插拰涔欏叾涓竴涓湅浣1锛屾湁鍒╀簬闂鐨勮В鍐炽傜幇鍦ㄦ垜浠潵瑙ｇ瓟:绛:鎶婁箼鐪嬩綔1锛1+1/4=5/4 锛5/4-1锛/锛5/4锛=锛1/4锛/锛5/4锛=1/4*4/5 =1/5 ...
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