Сократим каждую дробь:
1. $$\frac{27}{36} = \frac{3 * 9}{4 * 9} = \frac{3}{4}$$
2. $$\frac{50}{75} = \frac{2 * 25}{3 * 25} = \frac{2}{3}$$
3. $$\frac{112}{80} = \frac{14 * 8}{10 * 8} = \frac{14}{10} = \frac{7 * 2}{5 * 2} = \frac{7}{5}$$ или 1$$\frac{2}{5}$$
Ответ: $$\frac{3}{4}$$, $$\frac{2}{3}$$, $$\frac{7}{5}$$ или 1$$\frac{2}{5}$$