Explicație pas cu pas:
[tex]0.(15) = \frac{15}{99} \\ 2.5 = \frac{25}{10} = \frac{5}{2} \\ \frac{15}{99} \div \frac{5}{2} = \frac{15}{99} \times \frac{2}{5} = \frac{6}{99} = \frac{2}{33}=0.(06) [/tex]