7⼀20×5⼀14+ 3⼀8简便算法?

2025-04-05 22:13:32
推荐回答(3个)
回答1:

依次运算也比较简单,你看看

回答2:

7/20×5/14+3/8
=1/8+3/8
=4/8
=1/2

回答3:

先约分再计算

7/20×5/14+ 3/8

=1/4x1/2+3/8
=1/8+3/8
=4/8
=1/2
望采纳,谢谢