6.35-4又3/4+1又13/20-2.25等于?

问题描述:

6.35-4又3/4+1又13/20-2.25等于?

6.35-4又3/4+1又13/20-2.25
=(6.35+1又13/20)-(4又3/4+2.25)
=8-7
=1