Answer:
4 and 9
Step-by-step explanation:
(a)4×2=8 4×3=12
2 and 3 have no common factors
(b) 9×2=18 9×3=27
I pressed this by an accident
f=13/9
f-8/9=5/9
solution
f=5/9+8/9
f= 5+8/9=13/9