12 7 1313

$${\frac{12}{13}} : {\frac{7}{13}} = {\frac{12}{13}} \cdot {\frac{13}{7}} = {\frac{12 \cdot 13}{13 \cdot 7}} = {\frac{12}{7}} = 1{ \frac{5}{7}}$$

Ответ: $$1\frac{5}{7}$$