Answer
$\dfrac{5}{8}$
Work Step by Step
To combine fractions, make sure that the fractions have the same denominators before combining their numerators.
\begin{align}
\dfrac{ 5 }{ 16 } - (-\dfrac{ 5 }{ 16 }) &= \dfrac{ 5 }{ 16 } + \dfrac{ 5 }{ 16 } &&\text{Change the sign} \\
&= \dfrac{ 5 + 5 }{ 16 } &&\text{Add the numerators} \\
&= \dfrac{ 10 }{ 16 } \\
&= \dfrac{ 10 \div 2 }{ 16 \div 2 } &&\text{Reduce to lowest terms} \\
&= \boxed{ \dfrac{ 5 }{ 8 } }
\end{align}
