\( 3\frac{1}{15} - \frac{2}{5} = \frac{3 × 15 + 1}{15} - \frac{2 × 3}{5 × 3} = \frac{46}{15} - \frac{6}{15} = \frac{40}{15} = \frac{8}{3} \)
\( 2\frac{2}{5} \div 3 = \frac{2 × 5 + 2}{5} \div 3 = \frac{12}{5} \div 3 = \frac{12}{5} \times \frac{1}{3} = \frac{12}{15} = \frac{4}{5} \)
\( \frac{8}{3} \div \frac{4}{5} = \frac{8}{3} \times \frac{5}{4} = \frac{40}{12} = \frac{10}{3} = 3\frac{1}{3} \)
Ответ: \( 3\frac{1}{3} \).