1) 10 3/23 - 7 19/46 = 10 18/46 - 7 19/46 = (10 - 7) + (18/46 - 19/46) = 3 - 1/46 = 2 45/46
2) 16 2/5 - 4 3/7 = 16 14/35 - 4 15/35 = (16 - 4) + (14/35 - 15/35) = 12 - 1/35 = 11 34/35
3) 19 5/12 - 8 17/18 = 19 45/108 - 8 85/108 = (19 - 8) + (45/108 - 85/108) = 11 - 40 / 108 = 11 - 5/27 = 10 22/27
1) 10 3/23 - 7 19/46 = 10 18/46 - 7 19/46 = (10 - 7) + (18/46 - 19/46) = 3 - 1/46 = 2 45/46
2) 16 2/5 - 4 3/7 = 16 14/35 - 4 15/35 = (16 - 4) + (14/35 - 15/35) = 12 - 1/35 = 11 34/35
3) 19 5/12 - 8 17/18 = 19 45/108 - 8 85/108 = (19 - 8) + (45/108 - 85/108) = 11 - 40 / 108 = 11 - 5/27 = 10 22/27