1)35/6 - 24/9 = 3 1/6
2)262/5 - 814/15 = -1 13/15
3)3 5/6 - 4/15= 3 17/30
4)75/12 - 19/9 = 4 5/36
5)74/9 - 61/2 = -22 5/18
6)18 - 53/5 = 7 2/5
7)13 - 53/5 = 2 2/4
8)3 - 5/11 + (7 - 3/17) = 3 - 5/11 + 6 14/17 = 2 6/11 + 6 14/17 = 9 69/187
