Question

2/7+(5/7-3/8) помогите с решением,пж

Answer 1

2/7+(5/7-3/8)=5/8
5/7-3/8=40/56-21/56=19/56
2/7+19/56=16/56+19/56=35/56=5/8

Answer 2

2/7+(5/7-3/8)=2/7+5/7-3/8=1-3/8=5/8.