p) $\dfrac{0,375 - 0,3 + \dfrac{3}{11} + \dfrac{3}{12}}{0,625 - 0,5 + \dfrac{5}{11} + \dfrac{5}{12}}$
$= \dfrac{\dfrac{3}{8} - \dfrac{3}{10} + \dfrac{3}{11} + \dfrac{3}{12}}{\dfrac{5}{8} - \dfrac{5}{10} + \dfrac{5}{11} + \dfrac{5}{12}}$
$= \dfrac{3\left ( \dfrac{1}{8} - \dfrac{1}{10} + \dfrac{1}{11} + \dfrac{1}{12} \right )}{5\left ( \dfrac{1}{8} - \dfrac{1}{10} + \dfrac{1}{11} + \dfrac{1}{12} \right )}$
$= \dfrac{3}{5}$
