Subtract. Write your answer in lowest terms.
-$\frac { 9 } { 21 } - \frac { 5 } { 21 }$

A) $\frac { 1 } { 2 }$

B) $\frac { 1 } { 3 }$

C) $\frac { 4 } { 7 }$

D) $\frac { 4 } { 21 }$

Question

Subtract. Write your answer in lowest terms.
-$\frac { 9 } { 21 } - \frac { 5 } { 21 }$

A) $\frac { 1 } { 2 }$

B) $\frac { 1 } { 3 }$

C) $\frac { 4 } { 7 }$

D) $\frac { 4 } { 21 }$

Quizplus · Accepted Answer

Since the denominators are the same, you subtract the numerators: $9 - 5 = 4$, resulting in $\frac{4}{21}$, which is already in lowest terms.

Subtract Write Your Answer in Lowest Terms 921−521\frac { 9 } { 21 } - \frac { 5 } { 21 }219​−215​