4. \(\frac{35a^3b^3}{10a^2bc}\)

4. Сократим дробь:

$$\frac{35a^3b^3}{10a^2bc} = \frac{7ab^3}{2c}$$

Ответ: $$\frac{35a^3b^3}{10a^2bc} = \frac{7ab^3}{2c}$$