3. \(\frac{24x^5y^3}{56x^7y}\)

3. Сократим дробь:

$$\frac{24x^5y^3}{56x^7y} = \frac{3y^2}{7x^2}$$

Ответ: $$\frac{24x^5y^3}{56x^7y} = \frac{3y^2}{7x^2}$$