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85问答库 > 3又1⼀5-1又1⼀15-1⼀25等于多少？

3又1⼀5-1又1⼀15-1⼀25等于多少？

2025-03-16 00:22:18

推荐回答（5个）

回答1：

通分就可以做出来，不过要先把假分数化成带分数
3又1/5-1又1/15-1/25
=16/5 -16/15-1/25
=240/75 -80/75-3/75
=(160-3)/75
=157/75
=2又7/75

回答2：

3又1/5-1又1/15-1/25等于
解析：
3又1/5-1又1/15-1/25
=3又3/15-1又1/15-1/25
=2又2/15-1/25
=2又10/75-3/75
=2又7/75

回答3：

分数加减法

=16/5-16/15-1/25

=240/75-80/75-3/75

=157/75

回答4：

3又1/5-1又1/15-1/25
=16/5-16/15-1/25
=240/75-80/75-3/75
=160/75-3/75
=157/75
=2又7/75

回答5：

原式=2+(15-5-3)/75
=2+7/75.

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