Prealgebra (7th Edition)

by Martin-Gay, Elayn

Published by Pearson

ISBN 10: 0321955048

ISBN 13: 978-0-32195-504-3

Chapter 4 - Section 4.4 - Adding and Subtracting Like Fractions, Least Common Denominator, and Equivalent Fractions - Exercise Set - Page 264: 89

Answer

$\frac{11}{7}$ or $1\frac{4}{7}$

Work Step by Step

When adding like fractions, the denominator of the sum is the same as the denominator of the addends. The denominators should not be not summed. $\frac{2}{7}+\frac{9}{7}=\frac{11}{7}$

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