11/7X1/4+1/4除7/10-1除4=?要简便计算
问题描述:
11/7X1/4+1/4除7/10-1除4=?要简便计算
答
答案:=11/7x1/4+1/4X10/7-1X1/4
=1/4X(11/7+10/7-1)
= 1/4X2
=1/2