1) 7/15 + 2/15 = 9/15 = 3/5
2) 37/46 - 21/46 = 16/46 = 8/23
3) 5 17/36 + 3 7/36 = 8 24/36 = 9 2/3
4) 17 53/63 - 9 32/63 = 8 21/63 = 8 1/3
1) 7/15 + 2/15 = 9/15 = 3/5
2) 37/46 - 21/46 = 16/46 = 8/23
3) 5 17/36 + 3 7/36 = 8 24/36 = 9 2/3
4) 17 53/63 - 9 32/63 = 8 21/63 = 8 1/3