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五年级数学下册4分数的意义和性质通分补充习题新人教版.doc

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1第 4 单元 分数的意义和性质通分两个数的最小公倍数是 12，这两个数可能是（ ）和（ ） 。答案提示： （答案不唯一）3 和 4；解题思路：首先知道找最小公倍数的方法，再逆向解决。2

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