鸭比鸡少2/5.鸭是鸡的几分之几
人气:368 ℃ 时间:2019-10-24 13:48:11
解答
说一个简单的一点,鸭比鸡少2/5,假设鸭有3只,鸡就有5只,
鸭是鸡的几分之几就变成3是5的几分之几
很简单5分之3
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