Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Skills Handbook - Adding and Subtracting Fractions - Exercises - Page 803: 15



Work Step by Step

In order to add or subtract fractions, we need common denominators. Because 3/10 and 9/10 already have the same denominator, 10, we can subtract the numerators: $ \frac{9}{10} - \frac{3}{10} = \frac{6}{10}=\frac{3}{5}$
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