Решение:
$$2 \frac{4}{15} - (2 - 1 \frac{1}{15}) : \frac{4}{9} + \frac{2}{3} = \frac{34}{15} - (\frac{30}{15} - \frac{16}{15}) : \frac{4}{9} + \frac{2}{3} = \frac{34}{15} - \frac{14}{15} : \frac{4}{9} + \frac{2}{3} = \frac{34}{15} - \frac{14}{15} \cdot \frac{9}{4} + \frac{2}{3} = \frac{34}{15} - \frac{7 \cdot 3}{5 \cdot 2} + \frac{2}{3} = \frac{34}{15} - \frac{21}{10} + \frac{2}{3} = \frac{68}{30} - \frac{63}{30} + \frac{20}{30} = \frac{5}{30} + \frac{20}{30} = \frac{25}{30} = \frac{5}{6}$$
Ответ: $$\frac{5}{6}$$