Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 1 - Section 1.7 - Addition and Subtraction of Fractions - Exercise: 41

Answer

$13\frac{31}{45}$

Work Step by Step

We combine the fractions by finding the LCD and simplify if necessary: $3\frac{4}{5}=3\frac{36}{45}$ ${9\frac{8}{9}}=9\frac{40}{45}$ $3\frac{36}{45}+9\frac{40}{45}=12\frac{76}{45}=13\frac{31}{45}$
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