1/2+1/3=? 2/3+1/4=? 5/7-1/6=? 1/8+1/4=? 1/2-5/12=? 1/8+7/12=? 5/9++3/4=? 9/35-3/28=?

Question

1/2+1/3=? 2/3+1/4=? 5/7-1/6=? 1/8+1/4=? 1/2-5/12=? 1/8+7/12=? 5/9++3/4=? 9/35-3/28=?

Answer 1

1. 5/6
2.11/12
3.23/42
4.3/8
5.1/3
6.-11/24
7. 47/36
8.3/20

Answer 2

1/2+1/3=5/6

2/3+1/4=11/4

5/7-1/6=23/42

1/8+1/4=6/16

1/2-5/12=1/12

1/8+7/12=17/24

5/9+3/4=47/36

9/35-3/28=147/980