Vielleicht so:
A=\( \begin{pmatrix} 5/6 & -3/8 \\ 5/8 & 3/2 \end{pmatrix} \)
=1/24 * \( \begin{pmatrix} 20 & -9 \\ 15 & 36 \end{pmatrix} \)
B=\( \begin{pmatrix} 1/\sqrt{2} & \sqrt{6} \\ -\sqrt{6} & \sqrt{2}/2 \end{pmatrix} \)
=\( \sqrt{2}*\begin{pmatrix} 1/2 & \sqrt{3} \\ -\sqrt{3} & 1/2 \end{pmatrix} \)