85问答库 > 2⼀3和5⼀7化成通分

2⼀3和5⼀7化成通分

2/3和5/7化成通分
2025-04-04 15:07:08
推荐回答（4个）
回答1：

2/3和5/7化成通分
2/3=14/21
5/7=15/21
解析
把几个异分母分数化成与原来分数相等的且分母相同的分数,叫做通分

回答2：

解析把几个异分母分数化成与原来分数相等的且分母相同的分数

回答3：

通分
2/3=14/21
5/7=15/21

回答4：

通风后的速度是25/12。

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