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 42: 83


52$\frac{5}{32}$ in

Work Step by Step

Let us consider the mechanic needs tubing of length = 15$\frac{3}{8}$ in, 7$\frac{3}{4}$ in, 11$\frac{1}{2}$ in, 7$\frac{7}{32}$ in, 10$\frac{5}{16}$ in Total length = 15$\frac{3}{8}$ in + 7$\frac{3}{4}$ in + 11$\frac{1}{2}$ in + 7$\frac{7}{32}$ in+ 10$\frac{5}{16}$ in = $\frac{123}{8}$ + $\frac{31}{4}$ + $\frac{23}{2}$ + $\frac{231}{32}$ + $\frac{165}{16}$ =$\frac{123}{8}\times$ $\frac{4}{4}$ + $\frac{31}{4}\times$ $\frac{8}{8}$ + $\frac{23}{2}\times$ $\frac{16}{16}$ + $\frac{231}{32}$+ $\frac{165}{16}\times$ $\frac{2}{2}$ =$\frac{492}{32}$ + $\frac{248}{32}$ + $\frac{368}{32}$ + $\frac{231}{32}$+$\frac{330}{32}$ = $\frac{1669}{32}$ =52$\frac{5}{32}$ in
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