七分之五加上五分之二乘以3再除以二分之一,结果是多少?

2024-11-01 02:15:40
推荐回答(3个)
回答1:

解:

5/7+2/5x3÷1/2

=5/7+6/5x2

=5/7+12/5

=25/35+84/35

=109/35 (35分之109)

回答2:

5/7十2/5X3÷1/2
=5/7十6/5X2
=25/35十84/35
=1o9/35

回答3:

解如下图所示