/-0.25/+(-3又4/3)-(-0.75)+/0.125/+7/8

问题描述:

/-0.25/+(-3又4/3)-(-0.75)+/0.125/+7/8

/-0.25/+(-3又4/3)-(-0.75)+/0.125/+7/8
=0.25-3又4/3+0.75+0.125+7/8
=1-4又1/3+1
=-2又1/3