1) 7/2 + 13/3 = 21/6 + 26/6 = 47/6 = 7 5/6
2) 1/5 + 36/7 = 7/35 + 180/35 = 187/35 = 5 12/35
3) 62/5 + 64/9 = 558/45 + 320/45 = 878/45 = 19 23/45
4) 4/5 + 19/6 = 24/30 + 95/30 = 119/30 = 3 29/30
5) 43/5 + 11/4 = 172/20 + 55/20 = 227/20 = 11 7/20
6) 15/4 + 1/6 = 90/24 + 6/24 = 96/24 = 4
7) 73/5 + 38/7 = 511/35 + 190/35 = 701/35 = 20 1/35
8) 65/4 + 7/3 = 195/12 + 28/12 = 223/12 = 18 7/12
9) 235/9 + 1/2 = 470/18 + 9/18 = 479/18 = 26 11/18