## Algebra: A Combined Approach (4th Edition)

a. -11.1 b. $-\frac{1}{5}$ c. $\frac{3}{4}$
a. To subtract -2.7 - 8.4, add their absolute values and make the sum negative: 2.7 + 8.4 = 11.1, -11.1 b. $-\frac{4}{5} - (-\frac{3}{5})$ = $-\frac{4}{5} + \frac{3}{5}$ = $-\frac{1}{5}$ c. $\frac{1}{4} - (-\frac{1}{2}) = \frac{1}{4} + \frac{1}{2} = \frac{1}{4} + \frac{2}{4} = \frac{3}{4}$