Questions is in the picture. no links please illl give brainly and 50 points only if answered properly

Answer:
subtract
a) 13/20
b) 1/2
c) 5/24
d) 7/18
e) 7/20
f) 3/40
Add or subtract
a) 4/9
b) 1/2
c) 11/20
d) 1/4
e) 19/12 or 1 [tex]\frac{7}{12}[/tex]
f) 4/21
9.
A- 13/20
B- 1/2
C- 5/24
D- 7/18
E- 7/20
F-3/40
10-
A-4/9
B-1/2
C-11/20
D-1/4
E-19/12
F- 4/21