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 - Page 43: 86



Work Step by Step

three truckloads of firewood contains =$\frac{2}{3}$ , $\frac{3}{4}$ , and $\frac{2}{3}$ of a cord Total cords of wirewood she burnt = $\frac{2}{3}$ +$\frac{3}{4}$ + $\frac{2}{3}$ =$\frac{2}{3}\times$ $\frac{4}{4}$ + $\frac{3}{4}\times$ $\frac{3}{3}$ + $\frac{2}{3}\times$ $\frac{4}{4}$ = $\frac{8}{12}$ + $\frac{9}{12}$ + $\frac{8}{12}$ =$\frac{25}{12}$ =2$\frac{1}{12}$
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