\(\frac{0,6}{1+\frac{1}{2}}\)

\(0,6=\frac{3}{5}\), а \(1+\frac{1}{2}=\frac{3}{2}\).

\(\frac{3}{5}:\frac{3}{2}=\frac{2}{5}\).

Ответ: \(\frac{2}{5}\)