ГДЗ по алгебре 8 класс Макарычев Задание 136

\[\boxed{\text{136\ (136).\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]

\[\textbf{а)}\ \frac{11m^{4}}{6n^{2}} \cdot \frac{5m}{6n^{3}}\ :\frac{11n^{3}}{12m^{3}} =\]

\[= \frac{11m^{4}}{6n^{2}} \cdot \frac{5m}{6n^{3}} \cdot \frac{12m^{3}}{11n^{3}} = \frac{5m^{8}}{3n^{8}}\]

\[\textbf{б)}\ \frac{8x^{3}}{7y^{3}}\ :\frac{4x^{4}}{49y^{2}}\ :\frac{7x}{y^{2}} =\]

\[= \frac{8x^{3}}{7y^{3}} \cdot \frac{49y^{2}}{4x^{4}} \cdot \frac{y^{2}}{7x} = \frac{2y}{x^{2}}\]