Ответ:

а) \(\dfrac{4x^3y^2}{p}:6x^4y^5=\dfrac{4x^3y^2}{p}\cdot\dfrac{1}{6x^4y^5}=\dfrac{2}{3pxy^3}\).

б) \(\dfrac{m}{17a^2d^2}\cdot34a^2d^8=2md^6\).

в) \(\dfrac{4x^3y^4}{a}:36x^3y^4=\dfrac{4x^3y^4}{a}\cdot\dfrac{1}{36x^3y^4}=\dfrac{1}{9a}\).

г) \(8p^3n^5\cdot\dfrac{x}{6p^2n^3}=\dfrac{4pxn^2}{3}\).