Question

выполните действия: 1) 9/56-(7/15-5/12)×(3/14 +1/2) 2) (2/3+7/8-5/6)×(1-5/17)

Answer 1

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