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