Functions Modeling Change: A Preparation for Calculus, 5th Edition

Published by Wiley
ISBN 10: 1118583191
ISBN 13: 978-1-11858-319-7

Chapter 11 - Polynomial and Rational Functions - Exercises to Skills Review for Chapter 11 - Page 494: 2



Work Step by Step

Rewrite both of the fractions to get a common denominator. $$\frac{7}{10}-\frac{2}{15}=\frac{7(3)}{10(3)}-\frac{2(2)}{15(2)}=\frac{21}{30}-\frac{4}{30}$$ Therefore, the expression simplifies to $\frac{21-4}{30}=\frac{17}{30}$.
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