3 6 / 7 7 =

\( \frac{3}{7} : \frac{6}{7} = \frac{3}{7} \times \frac{7}{6} = \frac{3 \times 7}{7 \times 6} = \frac{21}{42} = \frac{1}{2} \)

Ответ: \( \frac{1}{2} \)