Problem:
Add the two matrices
$\left(
\begin{array}{cc}
 -\frac{38}{7} & \frac{36}{7} \\
 -\frac{41}{7} & 7 \\
 -\frac{29}{7} & \frac{12}{7} \\
 \frac{50}{7} & \frac{51}{7} \\
\end{array}
\right)$ and
$\left(
\begin{array}{cc}
 \frac{46}{7} & -\frac{30}{7} \\
 4 & \frac{51}{7} \\
 \frac{25}{7} & -\frac{44}{7} \\
 \frac{4}{7} & \frac{26}{7} \\
\end{array}
\right)$
Answer:
$\left(
\begin{array}{cc}
 \frac{8}{7} & \frac{6}{7} \\
 -\frac{13}{7} & \frac{100}{7} \\
 -\frac{4}{7} & -\frac{32}{7} \\
 \frac{54}{7} & 11 \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/add/46170.txt'}