which eqiuvalent fraction would you have to use in order to

which eqiuvalent fraction would you have to use in order to add 3/5 to 21/25?
公主ww77 1年前 已收到1个回答 举报

啸坤同学自己 幼苗

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这个题的意思是:
用什么分数加上3/5结果是21/25
也就是用21/25-3/5
=(21-15)/25
=6/25

1年前

5
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