Problem:
Multiply
$\left(
\begin{array}{ccccc}
 \frac{10}{9} & -\frac{20}{9} & -\frac{14}{9} & 1 & -\frac{7}{9} \\
 -\frac{22}{9} & -\frac{5}{3} & -\frac{20}{9} & \frac{11}{9} & \frac{20}{9} \\
\end{array}
\right)$ and
$\left(
\begin{array}{cc}
 -\frac{1}{3} & -\frac{22}{9} \\
 \frac{5}{9} & -3 \\
 -\frac{11}{9} & -\frac{2}{9} \\
 -\frac{4}{3} & 1 \\
 3 & -\frac{4}{9} \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{cc}
 -\frac{91}{27} & \frac{457}{81} \\
 \frac{619}{81} & \frac{316}{27} \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/multiply/32004.txt'}