Answer
$3:5$
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 $\frac {3}{5}=3:5$.
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 5 - Test - Page 275: 1a
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