Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 2 - Multiplying and Dividing Fractions - 2.7 Dividing Fractions - 2.7 Exercises - Page 167: 57

Answer

(a) To find the perimeter of an object whose sides are the same length, multiply that length by the number of sides. (b) $3 \frac{3}{4}$

Work Step by Step

(a) Perimeter is the sum of the length of the sides of an object. Repeated addition can be restated as multiplication. Adding a number to itself is the same as multiplying by 2. Adding the same number x times is the same as multiplying by x. To find the perimeter of an object whose sides are the same length you can multiply that length by the number of sides. (b) $\frac{15}{16} \times 4$ = $\frac{15}{16} \times \frac{4}{1}$ Use the common factor of 4 to reduce the fractions. $\frac{15}{4} \times \frac{1}{1}$ = $\frac{15}{4}$ Restate as a mixed number. $15 \div 4 = 3R3$ = $3 \frac{3}{4}$
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.