Like what you saw?
Start your free trial and get immediate access to:
Watch 1-minute preview of this video

or

Get immediate access to:
Your video will begin after this quick intro to Brightstorm.

Adding and Subtracting Rational Expressions - Problem 7 532 views

To add and subtract rational expressions, or any kind of fraction, we need to have exactly the same denominator. In order to find a common denominator in these examples, we need to multiply both fractions by a clever form of one. The least common denominator will make reducing easier later, but even if you use a different common denominator, you can still get the correct answer with some additional work. If the original problem was subtraction, you need to be very precise with how you distribute the negative. Combine like terms in your new numerator, factor if possible, and reduce if possible.

Transcript Coming Soon!

Stuck on a Math Problem?

Ask Genie for a step-by-step solution