\[\boxed{\mathbf{106}\mathbf{3}\mathbf{\text{.\ }}Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1)\ \frac{4mn^{2}p}{28m^{2}np^{6}} = \frac{n}{7mp^{5}}\]
\[2)\ \frac{- 30x^{5}y³}{36x^{4}y^{8}} = - \frac{5x}{6y^{5}}\]
\[3)\ \frac{- 63xy^{9}}{- 72xy^{7}} = \frac{7y^{2}}{8}\]