\[Стр.\ 60.\]
\[35.\ Рациональные\ числа\]
\[\boxed{\mathbf{1.}}\]
\[Рациональным.\]
\[\boxed{\mathbf{2.}}\]
\[\textbf{а)}\ 3\frac{2}{7} = \frac{23}{7}\]
\[\textbf{б)}\ 0,16 = \frac{16}{100} = \frac{4}{25}\]
\[\textbf{в)} - 4\frac{1}{8} = - \frac{33}{8}\]
\[\textbf{г)} - 0,9 = - \frac{9}{10}\]
\[\textbf{д)}\ 5 = \frac{5}{1}\]
\[\textbf{е)} - 1\frac{3}{4} = - \frac{7}{4}\]
\[\textbf{ж)}\ 0,241 = \frac{241}{1000}\]
\[\textbf{з)}\ 0 = \frac{0}{3}\]
\[\textbf{и)} - 5 = - \frac{5}{1}\]
\[\boxed{\mathbf{3.}}\]
\[\textbf{б)}\ верно \Longrightarrow \frac{4}{9} = 0,(4)\]
\[\textbf{в)}\ неверно \Longrightarrow \frac{8}{11} = 0,(72)\]
\[\textbf{г)}\ верно \Longrightarrow 1\frac{7}{9} = 1,(7)\]
\[\textbf{д)}\ верно \Longrightarrow \frac{8}{99} = 0,(08)\]
\[\textbf{е)}\ верно \Longrightarrow 3\frac{\ 411}{990} = 3,4(15)\]
\[Ответ:\ \ а,\ б,\ г,\ д,\ е.\]