Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 2 - Real Numbers - 2.1 - Rational Numbers: Multiplication and Division - Problem Set 2.1: 77

Answer

Each piece is $\frac{3}{2}$ feet long.

Work Step by Step

The board is 4$\frac{1}{2}$ feet long, or $\frac{9}{2}$ feet long. He cuts it into three pieces of the same length. So, to find the length of each piece, we divide $\frac{9}{2}$ by 3 $\frac{9}{2}$ $\div$ 3 =$\frac{9}{2}$ $\times$ $\frac{1}{3}$ = $\frac{3\ \times\ 3}{2\ \times\ 3}$ = $\frac{3}{2}$ Each piece is $\frac{3}{2}$ feet long.
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