Respuesta:
[tex] \frac{2}{3} \times ( \frac{3}{4} + \frac{1}{5} ) + 4 \times ( \frac{5}{3} - \frac{3}{2} ) \\ \frac{2}{3} \times \frac{19}{20} + 4 \times \frac{1}{6} \\ \frac{19}{30} + \frac{4}{6} \\ \frac{17}{15} [/tex]
