# Thread: Multiplying and Dividing Rationals

1. ## Multiplying and Dividing Rationals

Would I eliminate 3n first or simplify 3n+9 on the bottom?

2. ## Re: Multiplying and Dividing Rationals

You need to factorise the denominator (bottom) first.

3. ## Re: Multiplying and Dividing Rationals

Just to clarify, would the solution to the problem be

4. ## Re: Multiplying and Dividing Rationals

So far so good, but you haven't finished yet. You can now cancel the common factor 3 in the right hand expression, and then multiply the two fractions together.