\[0,75 - \left( \frac{3^{\backslash 3}}{16} + \frac{1^{\backslash 2}}{24} \right) =\]
\[= \frac{3^{\backslash 12}}{4} - \frac{9 + 2}{48} = \frac{36}{48} - \frac{11}{48} = \frac{25}{48}.\]