Add or subtract as indicated. Write the answer in lowest terms.
-$20 \frac { 3 } { 4 } - \frac { 14 } { 16 }$
A) 19
B) $19 \frac { 7 } { 8 }$
C) $20 \frac { 7 } { 8 }$
D) $18 \frac { 7 } { 8 }$

Question

Quizplus · Accepted Answer

First, simplify the mixed number and the fraction: $20 \frac{3}{4} = 20 + \frac{3}{4}$ and $\frac{14}{16} = \frac{7}{8}$ (since 14 and 16 are both divisible by 2). Subtracting these gives $20 + \frac{3}{4} - \frac{7}{8}$. To subtract fractions, find a common denominator, which is 8 here, making the first fraction $\frac{6}{8}$. So, $20 + \frac{6}{8} - \frac{7}{8} = 20 - \frac{1}{8} = 19 \frac{7}{8}$.

Add or Subtract as Indicated 2034−141620 \frac { 3 } { 4 } - \frac { 14 } { 16 }2043​−1614​

Add or Subtract as Indicated $20 \frac { 3 } { 4 } - \frac { 14 } { 16 }$