Question

（-13又3/1）*5/1+（-6又3/2）*5/1+（+196又7/1）÷5-（+76又7/1）÷5

Answer 1

(-13又3/1)×5/1+(-6又3/2)×5/1+(+196又7/1)÷5-(+76又7/1)÷5

=(-3/40)×5/1+(-3/20)×5/1+(+7/1373)×5/1+(-7/533)×5/1

=[(-3/40)+(-3/20)+(+7/1373)+(-7/533)]×5/1

=[(-3/60)+(7/1373-7/533)]×5/1

=[(-20)+7/840]×5/1

=[(-20)+120]×5/1

=100×5/1

=20