Question

помогите матемаааатикаа поооооожжже

Answer 1

(-5/8+(-3/4))+(-7,6+(-2 2/5))=- 11 3/8
1. -5/8+(-3/4)=-5/8+(-3/4)=-5/8-3/4=-5/8-6/8=-11/8=-1 3/8
2. -7,6+(-2 2/5)=-7,6-2 2/5=-7,6-2 4/10=-7,6-2,4=-10
3. (-1 3/8)+(-10)=-11 3/8