5⼀18*7⼀4 11⼀18*5⼀4的简便算法

2024-11-02 23:25:29
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回答1:

5/18*7/4 11/18*5/4的简便算法
5/18*7/4 11/18*5/4
=5/18*7/4+5/18*11/4
=5/18*(7/4+11/4)
=5/18*18/4
=5/4