# Math Help - I think I have the right answer...Can some one please double check?

1. ## I think I have the right answer...Can some one please double check?

r^ -1- 4s^ -1
___________
5s - 20r

1
__
5rs

Is this correct?

2. Originally Posted by HappyFeet
r^ -1- 4s^ -1
___________
5s - 20r