Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 7 - Section 7.3 - Adding and Subtracting Rational Expressions with the Same Denominator - Exercise Set - Page 506: 3


$\displaystyle \frac{3x}{5}$

Work Step by Step

To add rational expressions with the same denominator, add numerators and place the sum over the common denominator. If possible, factor and simplify the result. --- $\displaystyle \frac{8x}{15}+\frac{x}{15} = \displaystyle \frac{8x+x}{15}$ $=\displaystyle \frac{9x}{15}$ $=\displaystyle \frac{3(3x)}{3(5)}\qquad$... reduce by 3 $=\displaystyle \frac{3x}{5}$
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