计算5/16÷[12/5-(5/8+1/8)÷5/4]

问题描述:

计算5/16÷[12/5-(5/8+1/8)÷5/4]

一百分子九十四

(5/16)/[12/5-(5/8+1/8)/(5/4)]
=(5/16)/[12/5-6/8*4/5]
=(5/16)/[12/5-3/5]
=(5/16)/9/5
=5/16*5/9
=25/144