Question

Anyone? (picture below)

Answer 1

`(n+5)/(5) = (n)/(5) + 1`

This is true because

`(n+5)/(5) = (n)/(5) + (5)/(5)`

So...

`(f+9)/(9) = (f)/(9) + 1`

The two one's cancel each other out, leaving us with

`(n)/(5) = (f)/(9)`

Answer 2

It has to be f/9. Check the picture attached.