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: 57

Answer

1 $\frac{31}{48}$ ton

Work Step by Step

Let the cooling requirements of the three seperate incubation rooms are $\frac{1}{3}$ ton , $\frac{3}{4}$ ton and $\frac{9}{16}$ ton therefore total tons required to install central HVAC unit = $\frac{1}{3}$ ton + $\frac{3}{4}$ ton + $\frac{9}{16}$ ton = $ \frac{1}{3} \times$ $\frac{16}{16}$ + $ \frac{3}{4} \times$ $\frac{12}{12}$ + $ \frac{9}{16} \times$ $\frac{3}{3}$ =$\frac{16}{48}$ ton + $\frac{36}{48}$ ton + $\frac{27}{48}$ ton = $\frac{79}{48}$ ton =1 $\frac{31}{48}$ ton
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