Question

How do I factor out the coefficient of the variable such as 1/3b -1/3?

Answer 1

It's very easy. We have a common multiple, in this case 1/3 and we need to factor it:

$\frac{1}{3}b- \frac{1}{3} = \frac{1}{3}(b-1)$

Notice that if you distribute the 1/3 in again, you will end up with the same thing. So that's your answer. Hope I could help! :)

Answer 2

I think it is factored out like this:
1/3(b-1)