5 4 6 10

\[ \frac{5}{6} \div \frac{4}{10} = \frac{5}{6} \cdot \frac{10}{4} = \frac{5 \cdot 10}{6 \cdot 4} = \frac{50}{24} = \frac{25}{12} = 2\frac{1}{12} \]

Ответ: \(2\frac{1}{12}\)