Subtract and simplify.
-$\frac { 4 } { 5 } - \frac { 3 } { 20 }$
A) $\frac { 3 } { 5 }$
B) $\frac { 1 } { 20 }$
C) $\frac { 7 } { 10 }$
D) $\frac { 13 } { 20 }$

Question

Quizplus · Accepted Answer

To subtract fractions, they must have a common denominator. The least common denominator (LCD) of 5 and 20 is 20. Convert $\frac{4}{5}$ to a fraction with a denominator of 20 by multiplying both the numerator and denominator by 4, resulting in $\frac{16}{20}$. The subtraction is then $\frac{16}{20} - \frac{3}{20} = \frac{13}{20}$.

Subtract and Simplify 45−320\frac { 4 } { 5 } - \frac { 3 } { 20 }54​−203​

Subtract and Simplify $\frac { 4 } { 5 } - \frac { 3 } { 20 }$