(-13 1/3)×1/5+(-6 2/3)×1/5+(-196 1/7)÷5+76 1/7÷5 简便运算!
问题描述:
(-13 1/3)×1/5+(-6 2/3)×1/5+(-196 1/7)÷5+76 1/7÷5 简便运算!
答
(-13又1/3)×1/5+(-6又2/3)×1/5+(-196又1/7)÷5+76又1/7÷5
=(-13又1/3-6又2/3)×1/5+(-196又1/7+76又1/7)÷5
=-20×1/5-120÷5
=-4-24
=-28