a)
1/7 + 5/14 = 2/14 + 5/14 = 7/14 = 1/2
b)
3/4 + 5/12 = 9/12 + 5/12 = 14/12 = 1 1/6
c)
8/9 - 5/18 = 16/18 - 5/18 = 11/18
d)
1/3 + 3/4 = 4/12 + 9/12 = 13/12 = 1 1/12
e)
3/5 + 1/2 = 6/10 + 5/10 = 11/10 = 1 1/10
f)
1 1/2 - 1/3 = 1 3/6 - 2/6 = 1 1/6
g)
1 1/2 + 3/8 = 1 4/8 + 3/8 = 1 7/8
h)
1 1/3 - 2/9 = 1 3/9 - 2/9 = 1 1/9
i)
2 3/5 - 7/10 = 2 6/10 - 7/10 =1 9/10
j)
5/6 - 1/4 =20/24 - 6/24 = 14/24
k)
1 1/6 - 7/9 = 1 2/18 - 14/18 = 6/18 =1/3
l)
2 3/8 - 1 5/6 = 2 16/24 - 1 20/24 = 4/24 = 1/6
