Problem:
Subtract the second matrix from the first:
$\left(
\begin{array}{cccc}
 -\frac{35}{8} & \frac{15}{8} & \frac{63}{8} & \frac{67}{8} \\
 -\frac{57}{8} & -\frac{75}{8} & \frac{43}{8} & -\frac{15}{8} \\
 -\frac{21}{4} & \frac{17}{4} & \frac{3}{8} & -\frac{21}{8} \\
 \frac{15}{4} & -\frac{65}{8} & -\frac{15}{4} & -\frac{11}{2} \\
\end{array}
\right)$
$\left(
\begin{array}{cccc}
 -\frac{45}{8} & \frac{75}{8} & -\frac{3}{4} & \frac{15}{8} \\
 -\frac{71}{8} & \frac{77}{8} & 4 & -\frac{55}{8} \\
 -\frac{31}{8} & -\frac{7}{2} & \frac{75}{8} & -\frac{67}{8} \\
 \frac{3}{4} & 10 & 3 & 3 \\
\end{array}
\right)$
Answer:
$\left(
\begin{array}{cccc}
 \frac{5}{4} & -\frac{15}{2} & \frac{69}{8} & \frac{13}{2} \\
 \frac{7}{4} & -19 & \frac{11}{8} & 5 \\
 -\frac{11}{8} & \frac{31}{4} & -9 & \frac{23}{4} \\
 3 & -\frac{145}{8} & -\frac{27}{4} & -\frac{17}{2} \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/subtract/15633.txt'}