# Thread: How to simplify (x-y)/y

1. ## How to simplify (x-y)/y

When $x+y=z$, we find the ratio of$x/y=(z-y)/y$

How can we rewrite $(z-y)/y$ to repeat $y$ only once?

2. ## Re: How to simplify (x-y)/y

(z- y)/y= (z/y)- 1