Find the rational number halfway between the two given rational numbers.
-$- \frac { 5 } { 8 } , - \frac { 5 } { 16 }$
A) $- \frac { 5 } { 18 }$
B) $- \frac { 5 } { 12 }$
C) $- \frac { 5 } { 32 }$
D) $- \frac { 15 } { 32 }$

Question

Quizplus · Accepted Answer

To find the number halfway between two numbers, you average them. The average of $- \frac { 5 } { 8 } $ and $- \frac { 5 } { 16 }$ is $\frac{- \frac { 5 } { 8 } - \frac { 5 } { 16 }}{2}$. Finding a common denominator (16) gives $\frac{- \frac { 10 } { 16 } - \frac { 5 } { 16 }}{2} = \frac{- \frac { 15 } { 16 }}{2} = - \frac { 15 } { 32 }$.

Find the Rational Number Halfway Between the Two Given Rational −58,−516- \frac { 5 } { 8 } , - \frac { 5 } { 16 }−85​,−165​

Find the Rational Number Halfway Between the Two Given Rational $- \frac { 5 } { 8 } , - \frac { 5 } { 16 }$