\[\boxed{\text{9.\ }\text{ОК\ ГДЗ\ -\ домашка\ на\ 5}}\]
\[\textbf{а)}\ 2,(3) = 2\frac{1}{3}\]
\[верно.\]
\[\textbf{б)}\ 0,1(6) = \frac{1}{6}\]
\[верно.\]
\[\textbf{в)}\ 7,(18) = 7\frac{2}{11}\]
\[верно.\]
\[\textbf{г)}\ 3,4(6) = 3\frac{7}{15}\]
\[верно.\]