Question

Помогитееееееееееееее​

Answer 1

$1) \ \dfrac{2}{3x^{2}y^{2}z} =\dfrac{2\cdot2x^{2} }{3x^{2}y^{2} z\cdot2x^{2} } =\dfrac{4x^{2} }{6x^{4}y^{2}z} \\\\\boxed{2x^{2}}\\\\\\2) \ \dfrac{5}{2x^{4}y^{2}}=\dfrac{5\cdot3z}{2x^{4}y^{2}\cdot3z}=\dfrac{15z}{6x^{4}y^{2}z} \\\\\boxed{3z}$