Problem:
Add the two matrices
$\left(
\begin{array}{c}
 \frac{13}{2} \\
 -\frac{37}{10} \\
 -4 \\
\end{array}
\right)$ and
$\left(
\begin{array}{c}
 -\frac{31}{5} \\
 \frac{7}{2} \\
 \frac{63}{10} \\
\end{array}
\right)$
Answer:
$\left(
\begin{array}{c}
 \frac{3}{10} \\
 -\frac{1}{5} \\
 \frac{23}{10} \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/add/9221.txt'}