Find both the additive inverse and the multiplicative inverse for the given number.
-$- \frac { 7 } { 20 }$
A)0, 1
B) $- \frac { 7 } { 20 } , - \frac { 20 } { 7 }$
C) $\frac { 7 } { 20 } , - \frac { 20 } { 7 }$
D) $\frac { 20 } { 7 } , - \frac { 7 } { 20 }$

Question

Quizplus · Accepted Answer

The additive inverse of a number is what you add to a number to get zero, which for $- \frac { 7 } { 20 }$ is $\frac { 7 } { 20 }$. The multiplicative inverse (or reciprocal) is what you multiply a number by to get one, which for $- \frac { 7 } { 20 }$ is $- \frac { 20 } { 7 }$.

Find Both the Additive Inverse and the Multiplicative Inverse for the Given