Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 3 - Adding and Subtracting Fractions - 3.4 Adding and Subtracting Mixed Numbers - 3.4 Exercises - Page 227: 9

Answer

Estimated 9 Exact $8 \frac{5}{6}$

Work Step by Step

To estimate when adding fractions, round to the nearest whole number. $5\frac{1}{2}$ rounds up to 6 because the fraction is $\frac{1}{2}$ or greater. $3\frac{1}{3}$ rounds to 3 because the fraction is less than $\frac{1}{2}$. $6+3=9$ To add mixed numbers, add the whole numbers and add the fractions after converting to least common denominator. $\ \ \ 5\frac{1}{2}$ $\Rightarrow $ $\ \ \ 5\frac{3}{6}$ $\underline{+3\frac{1}{3}}$ $\ \ \ \ $ $\underline{+3\frac{2}{6}}$ $\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ $ $8\frac{5}{6}$
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.