甲数比乙数多25%，乙数比甲数少多少
\u7532\u6570\u6bd4\u4e59\u6570\u591a25%\uff0c\u4e59\u6570\u6bd4\u7532\u6570\u5c11\u591a\u5c11\uff1f\u8bbe\u4e59\u6570\u4e3a1\uff0c\u7532\u4e3a1.25\uff0c\u5219\u4e59\u6bd4\u7532\u5c110.25\uff0c\u518d\u75280.25\u9664\u4ee51.25\u7b49\u4e8e1\5.
\u8bbe\u4e59\u6570\u4e3aX,\u5219\u7532\u6570\u4e3aX+25%X=1.25X,
1.25X-X=0.25X,
\u6240\u4ee50.25X/(1.25X)=0.2=20%,
\u5373\u4e59\u6570\u6bd4\u7532\u6570\u5c1120%.
=25%÷125%
=20%
答：乙数比甲数少20% 。
乙数比甲数少百分之25
少3分之一
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绛旓細浠や箼鏁颁负1锛屽垯鐢叉暟涓1+25%=5/4 涔欐暟姣旂敳鏁灏 锛5/4-1锛壝5/4=1/4脳4/5=0.2=20
绛旓細瑙ｏ細25%梅锛1+25%锛=25%梅125 =20 绛旓細涔欐暟姣旂敳鏁灏戠櫨鍒嗕箣浜屽崄銆
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