ГДЗ по математике 6 класс Мерзляк ФГОС Задание 359

\[\boxed{\mathbf{359}\mathbf{.}}\]

\[1)\ \frac{5}{12}x = \frac{1}{6}\]

\[x = \frac{1}{6}\ :\frac{5}{12}\]

\[x = \frac{1}{6} \cdot \frac{12}{5}\]

\[x = \frac{2}{5}.\]

\[2)\ \frac{7}{16}\ :x = \frac{3}{4}\]

\[x = \frac{7}{16}\ :\frac{3}{4}\]

\[x = \frac{7}{16} \cdot \frac{4}{3}\]

\[x = \frac{7 \cdot 1}{4 \cdot 3}\]

\[x = \frac{7}{12}.\]

\[3)\ \frac{13}{17}x = 39\]

\[x = 39\ :\frac{13}{17}\]

\[x = 39 \cdot \frac{17}{13}\]

\[x = 3 \cdot 17\]

\[x = 51.\]

\[4)\ x\ :\frac{8}{27} = 18\]

\[x = 18 \cdot \frac{8}{27}\]

\[x = \frac{2 \cdot 8}{3} = \frac{16}{3}\]

\[x = 5\frac{1}{3}.\]