Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 2 - Multiplying and Dividing Fractions - 2.6 Applications of Multiplication - 2.6 Exercises - Page 157: 22

Answer

(answers vary) The main reason in not getting $1$ as an answer is that you made a mistake in the addition of the fractions. Some possible mistakes are: (1) You made a mistake in converting some fractions to a fraction whose denominator is 20 (the LCD). (2) After making the fractions similar using their LCD of 20, you made a mistake in adding the numerators. (3) You made a mistake of adding the numerators together and adding the denominators together to get $\frac{7}{29}$.

Work Step by Step

In Exercise 21, if you added the fractions for the groups and did not get $1$ as answer, then you must have made a mistake in the addition. Some possible reasons are: (1) You made a mistake in converting some fractions to a fraction whose denominator is 20 (the LCD); (2) After making the fractions similar using their LCD of 20, you made a mistake in adding the numerators; or (3) You made a mistake of adding the numerators together and adding the denominators together to get $\frac{7}{29}$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.