номер 59 гдз 8 класс алгебра Муравин Муравина

а)\begin{equation}\frac{a}{6}:\frac{b}{3}=\frac{a\cdot 3}{6\cdot b}=\frac{a}{2b} \end{equation} б)\begin{equation}\frac{12}{x}:\frac{18}{y}=\frac{12\cdot y}{x\cdot 18}=\frac{2y}{3x} \end{equation} в)\begin{equation}\frac{a^{2}}{6}:\frac{25}{b^{2}}=\frac{a^{2}\cdot 25}{6b^{2}}=\frac{25a^{2}}{6b^{2}} \end{equation} г)\begin{equation}\frac{15}{b^{3}}:\frac{25}{b^{2}}=\frac{15\cdot b^{2}}{b^{3}\cdot 25}=\frac{3}{5b} \end{equation} д)\begin{equation}\frac{2}{3}a:\frac{a}{6}=\frac{2a\cdot 6}{3\cdot a}=4 \end{equation} е)\begin{equation}\frac{5}{8}b:\frac{b^{2}}{16}=\frac{5b\cdot 16}{8\cdot b^{2}}=\frac{10}{6} \end{equation} ж)\begin{equation}-35a^{4}b:\frac{22a^{3}}{b^{2}}=\frac{-35a^{4}b\cdot b^{2}}{22a^{3}}= \end{equation} \begin{equation}=-\frac{35ab^{3}}{22} \end{equation} з)\begin{equation}26xy^{5}:\left ( -\frac{39x}{y^{10}} \right )=\frac{-26xy^{5}\cdot y^{10}}{39x}= \end{equation} \begin{equation}=-\frac{26y^{15}}{39} \end{equation} и)\begin{equation}\frac{36a^{3}}{5b^{2}}:\left ( 0,9a^{2}b \right )=\frac{36a^{3}}{5b^{2}\cdot 0,9a^{2}b}= \end{equation} \begin{equation}=\frac{8a}{b^{3}} \end{equation} к)\begin{equation}\frac{7x^{2}}{20y^{4}}:\left ( -0,7xy^{2} \right )= \end{equation} \begin{equation}=-\frac{7x^{2}}{20y^{4}\cdot 0,7xy^{2}}=-\frac{x}{2y^{6}} \end{equation} л)\begin{equation}\frac{21ax^{2}}{32y^{3}}:\left ( 7ax^{3}y \right )= \end{equation} \begin{equation}=\frac{21ax^{2}}{32y^{3}\cdot 7ax^{3}y}=\frac{3}{32y^{4}x} \end{equation} м)\begin{equation}\frac{35by^{3}}{36c^{4}}:\left ( 70bcy^{3} \right )= \end{equation} \begin{equation}=\frac{35by^{3}}{36c^{4}\cdot 70bcy^{3}}=\frac{1}{72c^{5}} \end{equation}