Answer
$10\dfrac{3}{8}$
Work Step by Step
Make the fractions similar using their LCD, which is $8$, to obtain:
\begin{array}{cc}
&&3\dfrac{1}{8}
\\&+ &2\dfrac{4}{8}
\\&&\underline{4\dfrac{6}{8}}
\end{array}
Add the fractions together and the whole numbers together to obtain:
$=(3+2+4)+\dfrac{1+4+6}{8}
\\=9+\dfrac{11}{8}
\\=9+1\dfrac{3}{8}
\\=10\dfrac{3}{8}$
