Question

1. (6-9 3/5)×(-1 2/3)-12×(-3/4+1/8)
2. (8-6 1/4):(-5/8)-9×(-1/2+2/5)
3. (2,8-6)×3 1/8-(-1,6):1/4+(-5,7)
4. (1,9-5):(-1 11/20)+4,8:(-1/6)×100
Помогите, пожалуйста! :с

Answer 1

1) (5 5/5-9 3/5)×(-1 2/3)-12×(-3/4+1/8)=
-4 2/5×(-1 2/3)-12×(-5/8)=
22/3+15/2=44/6+45/6=89/6=14 5/6