Решите:а)3/7+(-9/14)=...б)-5/9 -1/12=...в)-2/3*5/8=....г)3/28:(-5/7)=...

Question

Решите:а)3/7+(-9/14)=...б)-5/9 -1/12=...в)-2/3*5/8=....г)3/28:(-5/7)=...

Answer 1

А) 3/7+(-9/14)=6/14-9/14=-3/14
б)=-20/36-3/36=-23/36
в)=-5/12
г)=3/28*(-7/5)=-3/20