a)1/2 + 3/4 + 1/2 =
b)1/2 + 3/5 + 1/4 =
c)3/5 + 2/3 =
d)2/5 + 1/3 =
e)1/3 + 3/4 + 2/3 =
f)5/7 - 1/4 =
g)1/4 - 1/2 =
h)11/34 - 3/17 =
i)15/54 - 13/27 =
j)5/7 - 3/8 =​