how do you simplify (4-a)/(1-a)

Question

1. how do you simplify (4-a)/(1-a) =

Answer 1

This appears to already by simplified. Is there a second part to the problem?

Answer 2

It certainly doesn't feel as if you need to simplify any more, or can at all for that matter.

Answer 3

This is the simplest way to write the expression. you can not simplify any more.

Answer 4

are you sure you got the problem right? It's already simplified.