a) 12 1/5 - 4 2/3 = 12 3/15 - 4 10/15 = 7 8/15
b) 2 4/5 + 3 2/5 =5 6/5 = 6 1/5
c) 3 4/14 - 2 5/7 = 3 4/14 - 2 10/14 = 2 18/14 - 2 10/14 = 8/14 = 4/7
d)3/5 - 1/2 + 3/4 = 12/20 - 10/20 + 15/20 = 17/20
e) 5 1/3 - 2 5/6 + 1/3 = 5 2/6 - 2 5/6 + 2/6 = 4 8/6 - 2 5/6 + 2/6 = 2 3/6 + 2/6 = 2 5/6
