Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 6 - Rational Expressions and Equations - 6.3 Addition, Subtraction, and Least Common Denominators - 6.3 Exercise Set - Page 393: 9



Work Step by Step

When adding two fractions with common denominators, we add the numerators and copy the denominator. Therefore, $ \dfrac{4}{a+3}+\dfrac{5}{a+3} ,$ simplifies to \begin{array}{l}\require{cancel} \dfrac{4+5}{a+3} \\\\= \dfrac{9}{a+3} .\end{array}
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.