\[Стр.\ 29.\]
\[\boxed{\mathbf{4.}}\]
\[\textbf{а)}\ 1\frac{2}{3} = \frac{5}{3}\]
\[\textbf{б)}\ 4\frac{3}{7} = \frac{31}{7}\]
\[\textbf{в)}\ 8\frac{1}{9} = \frac{73}{9}\]
\[\textbf{г)}\ 10\frac{2}{11} = \frac{112}{11}\]
\[\textbf{д)}\ 3\frac{1}{100} = \frac{301}{100}\]
\[\textbf{е)}\ 7\frac{3}{5} = \frac{38}{5}\]
\[\textbf{ж)}\ 6\frac{1}{9} = \frac{55}{9}\]
\[\textbf{з)}\ 20\frac{3}{17} = \frac{343}{17}\]
\[\textbf{и)}\ 4\frac{2}{9} = \frac{38}{9}\]
\[к)\ 5\frac{1}{13} = \frac{66}{13}\]
\[л)\ 10\frac{3}{11} = \frac{113}{11}\]
\[м)\ 9\frac{8}{9} = \frac{89}{9}\]
\[\boxed{\mathbf{5.}}\]
\[1)\ нет;\]
\[2)\ нет;\]
\[3)\ нет;\]
\[4)\ нет;\]
\[5)\ да;\]
\[6)\ да;\]
\[7)\ да;\]
\[8)\ нет.\]
\[\boxed{\mathbf{6.}}\]
\[\textbf{а)}\ наибольшее\ \ 4\frac{2}{11};\]
\[наименьшее\ \ 1\frac{5}{11}.\]
\[\textbf{б)}\ \frac{37}{12} = 3\frac{1}{12};\]
\[\frac{49}{11} = 4\frac{5}{11};\ \]
\[наибольшее\ \ 4\frac{5}{11};\]
\[наименьшее\ \ 3\frac{1}{12}.\]