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58问答库 > 3⼀2-4⼀7-3⼀7简便其算？

3⼀2-4⼀7-3⼀7简便其算？

2025-03-14 18:00:44

推荐回答（3个）

回答（1）：

3/2-4/7-3/7简便计算？
解：
运用减法的性质进行简便计算：
3/2-4/7-3/7
=3/2-（4/7+3/7）
=3/2-1
=1/2
减法性质：
是指从一个数里连续减去两个数，可以减去这两个数的和，也可以先减去第一个减数，再减去第二个减数。

回答（2）：

3/2－4/7－3/7
＝3/2－（4/7+3/7）
＝3/2－1
＝1/2

回答（3）：

3/2一4/7一3/7=3/2一（4/7一3/7）=3/2一1/7=21/14一2/14=19/14

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