\[\boxed{\mathbf{Проверочная\ работа\ №1.\ Отношения\ }}\]
\[\boxed{\mathbf{1.}}\]
\[23\ :8 = \frac{23}{8}.\]
\[\boxed{\mathbf{2.}}\]
\[0,2\ :0,3 = \frac{0,2}{0,3} = \frac{2}{3}.\]
\[\boxed{\mathbf{3.}}\]
\[5\ :25 = \frac{5}{25} = \frac{1}{5} = \frac{2}{10} = 0,2.\]
\[\boxed{\mathbf{4.}}\]
\[0,4\ :1,2 = 4\ :12 = \frac{4}{12} = \frac{1}{3}.\]
\[\boxed{\mathbf{5.}}\]
\[7\ :9 = \frac{7}{9}\ часть.\]
\[\boxed{\mathbf{6.}}\]
\[13\ :6 = 2\frac{1}{6}\ (раза).\]
\[\boxed{\mathbf{7.}}\]
\[\mathbf{Нет,\ отношение\ чисел\ }\]
\[\mathbf{останется\ прежним.}\]
\[\boxed{\mathbf{8.}}\]
\[1\ ч = 60\ мин.\]
\[10\ :60 = \frac{10}{60} = \frac{1}{6}\]
\[Нет.\]