Answer
$\frac{3}{n}$
Work Step by Step
By inspection, we see that there is a common denominator of 3n. Therefore, we obtain:
$\frac{5}{3n}+\frac{4}{3n}$
$=\frac{5+4}{3n}$
$=\frac{9}{3n}$
$=\frac{3}{n}$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 7 - Algebraic Fractions - 7.3 - Adding and Subtracting Algebraic Fractions - Problem Set 7.3 - Page 291: 6
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