Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter R - Section R.2 - Fractions - Exercise Set: 84


To add or subtract fractions with the same denominator, add or subtract the numerator, and keep the denominator. To add or subtract fractions with different denominators, first write the fractions as equivalent fractions with the same denominator. Use the least common denominator, called the LCD.

Work Step by Step

(The LCD is the least common multiple of the denominators)
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