2 / 5 + 7 / 15 = 6 / 15 + 7 / 15 = 13 / 15
7 / 16 + 1 / 4 = 7 / 16 + 4 / 16 = 11 / 16
5 / 6 + 7 / 8 = 20 / 24 + 21 / 24 = 41 / 24 = 1 17/24
5 / 6 + 2 / 9 = 15 / 18 + 4 / 18 = 19 / 18 = 1 1/18
2 / 5 + 7 / 15 = 6 / 15 + 7 / 15 = 13 / 15
7 / 16 + 1 / 4 = 7 / 16 + 4 / 16 = 11 / 16
5 / 6 + 7 / 8 = 20 / 24 + 21 / 24 = 41 / 24 = 1 17/24
5 / 6 + 2 / 9 = 15 / 18 + 4 / 18 = 19 / 18 = 1 1/18