a). 5/8 + 2/8 - 3/8 =
7/8 - 3/8 = 7 - 3 /8 = 4/8 = 1/2
b). 7/18 - 2/18 + 4/18 =
5/18 + 4/18 = 5+4/18 = 9/18 = 1/2
c). 19/24 + 21/24 - 4/24 =
40/24 - 4/24 = 40 - 4/24 = 36/24 = 3/2
d). 24/35 - 7/35 + 18/35 =
17/35 + 18/35 = 17 + 18/35 = 35/35 = 1/1 =1
e). 17/20 + 13/20 - 10/20 =
30/20 - 10/20 = 30 - 10/20 = 20/20 = 1/1 = 1