-1-(-12分之5)-(-8分之7)-(-4分之3)等于多少

问题描述:

-1-(-12分之5)-(-8分之7)-(-4分之3)等于多少

-1-(-5/12)-(-7/8)-(-3/4)
=-1+5/12+(7/8+3/4)
=-1+5/12+13/8
=-1+49/24
=25/24