Question

Выполните действие:
9/56-(7/15-5/12)*(3/14+1/2)=

Answer 1

9/56-(7/15-5/12)*(3/14+1/2)=
1) 7/15-5/12=28/60-25/60=3/60=1/20
2) 3/14+1/2=3/14+7/14=10/14=5/7
3) 1/20*5/7=1/28
4) 9/56-1/28=9/56-2/56=7/56=1/8