(4/5-2/3)×5/8 = 2/9+7÷9+4/5 = 2-6/13÷9/26 = 这些是计算题,过程和得数我都要.

题目

(4/5-2/3)×5/8 = 2/9+7÷9+4/5 = 2-6/13÷9/26 = 这些是计算题,过程和得数我都要.
(4/5-2/3)×5/8 2/9+7÷9+4/5 2-6/13÷9/26
= = = = = =
= = =

答案

(4/5-2/3)×5/8
=(96/120-80/120)×5/8
=2/15×5/8
=1/12
2/9+7÷9+4/5
=2/9+7/9+4/5
=10/45+35/45+36/45
=81/45
2-6/13÷9/26
=2-6/13×26/9
=2-3/4
=4/5