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a) 1/3 + 1/5 =
b) 3/7 + 5/2 + 1/14 =
c) 1/3 + 5/6 + 3/4 =
d) 7/8 - 1/6 =
e) 3/5 - 1/7 =
f) 7/8 - 1/6 =
g) 1/3 x 5/6 =
h) 2/3 x 1/4 x 5/2 =
i) 3/10 x 5/9 =
j) 3/2 : 1/2 =
k) 1/3 : 7 =
l) 5/8 : 2 =
m) (1/7)² =
n) ( 13/15)² =
o) ( 2/3)³ =