\[0,2 + \frac{1}{7} = \frac{2}{10} + \frac{1}{7} = \frac{1^{\backslash 7}}{5} + \frac{1^{\backslash 5}}{7} =\]
\[= \frac{7}{35} + \frac{5}{35} = \frac{12}{35}\]