5分之4乘7分之3乘以12分之5=?
问题描述:
5分之4乘7分之3乘以12分之5=?
简便计算
答
(4/5)*(3/7)*(5/12)
=(4/5)*(5/12)*(3/7)
=(4/12)*(3/7)
=(1/3)*(3/7)
=1/7