Найди четыре дроби, каждая из которых больше 5/9 и меньше 7/9.

Ответ:

\[\frac{5}{9} < x < \frac{7}{9}\]

\[\frac{5}{9} \cdot \frac{3}{3} = \frac{15}{27};\ \ \ \ \ \ \ \frac{7}{9} \cdot \frac{3}{3} = \frac{21}{27}.\]

\[\frac{15}{27} < x < \frac{21}{27}\]

\[x = \left\{ \frac{16}{27};\ \frac{17}{27};\ \frac{18}{27};\ \frac{19}{27} \right\}.\]

\[Ответ:\ \frac{16}{27};\ \frac{17}{27};\ \frac{18}{27};\ \frac{19}{27}\text{.\ }\]

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