\[23.\ Доли.\ Обыкновенные\ дроби\]
\[Страница\ 7.\]
\[\boxed{\mathbf{1.}}\]
\[Осталась\ незакрашенной\ \]
\[\frac{2}{8} = \frac{1}{4}\ часть\ круга.\]
\[Закрашено\ \frac{6}{8} = \frac{3}{4}\ часть\ круга.\]
\[\boxed{\mathbf{2.}}\]
\[\textbf{а)}\ \]
\(\ \)
\[\text{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }\frac{5}{6}\text{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }\frac{3}{8}\text{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }\frac{2}{3}\]
\[\textbf{б)}\ \]
\(\ \)
\[\text{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }\frac{1}{6}\text{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }\frac{3}{4}\text{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }\frac{7}{8}\]
\[\boxed{\mathbf{3.}}\]
\[\textbf{а)}\ \frac{1}{8}\]
\[\frac{2}{6} = \frac{1}{3}\]
\[\frac{1}{3}\]
\[\textbf{б)}\ \frac{2}{6} = \frac{1}{3}\]
\[\frac{3}{4}\]
\[\frac{8}{18} = \frac{4}{9}\]