Question

1082 решите пожалуйста

Answer 1

1)=8(4/11+7/11)=8×1=8
2)=5(1/7+6/7)=5×1=5
3)=6/13(2/5+1/4)=6/13(8/20+5/20)=
=6/13×13/20=3/10
4)=5/6(5/8-1/4)=5/6(5/8-2/8)=
=5/6×3/8=5/16
5)=3/5(1-2/7)=3/5×5/7=3/7
6)=1/7(1/8+1/6)=1/7(3/24+4/24)=
=1/7×7/24=1/24