Answer
16/144
If that doesn't work, try simplifying the fraction.
29/4 hopes this help sorry if I’m wrong
The photo is kinda blurry but can I have more background information about what’s going on here
Lets go step by step and factor out each as we go
first lets factor out a 3 since 3 is common in 9 and 3
3(3ab^2 - abc)
now lets factor out a since its common in both
3a(3b^2 - bc)
now lets factor out a b since its common in both
3ab(b - c)
we can't factor anything else out so we are done.
Answer
c^4-32c^2+256 (Simplified)