Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 3 - Adding and Subtracting Fractions - 3.4 Adding and Subtracting Mixed Numbers - 3.4 Exercises - Page 230: 66

Answer

Estimate=8 Exact=7$\frac{3}{4}$

Work Step by Step

Estimate by rounding the mixed numbers to the nearest whole number and subtracting. Estimate:30-22=8 29$\frac{1}{2}$-21$\frac{3}{4}$ 29$\frac{2}{4}$-21$\frac{3}{4}$ 28$\frac{6}{4}$-21$\frac{3}{4}$ 7$\frac{3}{4}$
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