I thought I knew what I was doing (because I've done this before) but I can't see what's happening in this one example...I understood what was going on right up until the last step.(adsbygoogle = window.adsbygoogle || []).push({});

If you are dividing two rational expressions, flip the second expression and multiply the two rational expressions together.

Multiply the numerators and the denominators. Because you want to cancel out the common factors, it is best not to actually multiply the numbers but instead to just write them together.

Factor the numerator and denominator completely.

Cancel the common factors.

The final answer consists of the remaining factors.

Q. 18a^2 (a-1)/5 * 25/6a

A. 5a(a - 1)

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# Homework Help: Multiply and Divide Rational Expressions

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