3) 12 - 9 3/8 = 11 8/8 - 9 3/8 = 2 5/8
4) 11 - 6 2/3 = 10 3/3 - 6 2/3 = 4 1/3
5) 8 - 3 2/7 = 7 7/7 - 3 2/7 = 4 5/7
6) 5 6/23 - 2 = 5 6/23 - 1 23/23 = 4 29/23 - 1 23/23 = 3 6/23
7) 9 3/10 - 4 = 9 3/10 - 3 10/10 = 8 13/10 - 3 10/10 = 5 3/10 = 5,3
8) 2 3/14 - 1 = 1 3/14