Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 5 - Test - Page 275: 1a



Work Step by Step

The ratio $12:20$ simplifies to $3:5$. If you think of the ratio as a fraction $12:20 = \frac{12}{20}$, it is easier to see that you can simplify each number by 4; or $\frac {3}{5}=3:5$.
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