Bonsoir,
a)
10/8 +3/8 = 13/8
b)
7/24 - 4/24 = 3/24 = 1/8
c)
= 12/15 = 4/5
d)
19/6 - 12/6 = 7/6
e)
14/30 -11/30 = 3/30 = 1/10
f)
21/32
g)
105/ 96 = 35/ 32
h)
4/ 15 +1/3 = 4/15 + 5/15 = 9/15 = 3/5