\(\frac{1,5}{1+\frac{1}{5}}\)

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

\(\frac{3}{2}:\frac{6}{5}=\frac{5}{2}\).

Ответ: \(\frac{5}{2}\)