Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 13 - Probability - Get Ready! - Page 821: 5



Work Step by Step

To simplify a ratio, we divide by a fraction that is equal to $1$ (a fraction with the same number in the numerator and denominator is equal to $1$). In this case, we use $\frac{15}{15}$: $$\frac{45}{60}\div\frac{15}{15}=\frac{3}{4}$$
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