Question

помагите пжпжпжп прошу пожалуйста​

Answer 1

1 ) 2/7 + 3/8 = 16+21/56 = 37/56

2) 5/6 - 4/9 = 15 - 8/18 = 7 / 18

3) 2 5/8 + 1 3/10 = (2+1)+(5/8+3/10)=3 + 37/40 = 3 37/40

4) 5 11/12 - 3 7/18 = (5-3)+(11/12 - 7/8)=2 + 19/36 = 2 19/36