\[\frac{x}{10} - правильная\ дробь.\]
\[x = \left\{ 1;2;3;4;5;6;7;8;9 \right\}.\]
\[\frac{1}{10};\frac{2}{10};\frac{3}{10};\frac{4}{10};\frac{5}{10};\frac{6}{10};\frac{7}{10};\frac{8}{10};\]
\[\frac{9}{10}.\]