\[1)\ 2\frac{5^{\backslash 3}}{8} - \frac{23}{24} = 2\frac{15}{24} - \frac{23}{24} =\]
\[= 1\frac{39}{24} - \frac{23}{24} = 1\frac{16}{24} = 1\frac{2}{3}\ (м) -\]
\[другая\ сторона.\]
\[2)\ 2\frac{5}{8} \cdot 1\frac{2}{3} = \frac{21 \cdot 5}{8 \cdot 3} = \frac{35}{8} =\]
\[= 4\frac{3}{8}\ \left( м^{2} \right) - площадь\ \]
\[прямоугольника.\]
\[Ответ:\ 4\frac{3}{8}\ м^{2}.\]