Simplify.
-$$\frac { 1 } { 3 } - \frac { 13 } { 42 } + \frac { 4 } { 21 } - \frac { 5 } { 42 }$$
A) $\frac { 2 } { 21 }$
B) $\frac { 20 } { 21 }$
C) $\frac { 1 } { 42 }$
D) $\frac { 1 } { 21 }$

Question

Quizplus · Accepted Answer

To simplify, find a common denominator, which is 42. Convert each fraction: $\frac{1}{3} = \frac{14}{42}$, $\frac{4}{21} = \frac{8}{42}$. Then, $\frac{14}{42} - \frac{13}{42} + \frac{8}{42} - \frac{5}{42} = \frac{4}{42} = \frac{2}{21}$.

Simplify - 13−1342+421−542\frac { 1 } { 3 } - \frac { 13 } { 42 } + \frac { 4 } { 21 } - \frac { 5 } { 42 }31​−4213​+214​−425​

Simplify
- $\frac { 1 } { 3 } - \frac { 13 } { 42 } + \frac { 4 } { 21 } - \frac { 5 } { 42 }$