(+17分之13)+(3.5)+(-6)+(+2.5)+(+17分之4)=?

问题描述:

(+17分之13)+(3.5)+(-6)+(+2.5)+(+17分之4)=?

13/17+3.5-6+2.5+4/17
=(13/17+4/17)+(3.5+2.5-6)
=1+0
=1