Question

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？

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？列综合算式

Answer 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）

Answer 2

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

追答

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

Answer 3

解如下图所示