5) 8 - 3 2/7 = 8/1 - 23/7 = 56/7 - 23/7 = 33/7 =
= 4 5/7
6) 5 6/13 - 2 = 71/13 - 2/1 = 71/13 - 26/13 = 45/13 = 3 6/13
7) 9 3/10 - 4 = 93/10 - 4/1 = 93/10 - 40/10 = 53/10 =
= 5 3/10
8) 2 3/14 - 1 = 31/14 - 14/14 = 17/14 = 1 3/14
