(18.6-18.6*0.31)/0.69 简算
问题描述:
(18.6-18.6*0.31)/0.69 简算
答
=18.6*(1-0.31)/0.69
=18.6*0.69/0.69
=18.6
答
(18.6-18.6*0.31)/0.69
= 18.6*(1- 0.31)/0.69
= 18.6* 0.69/0.69
=18.6