1 1/15 : 1,2

\(1\frac{1}{15}=\frac{16}{15}\), \(1,2=\frac{6}{5}\).

\(\frac{16}{15}:\frac{6}{5}=\frac{16}{15}\cdot\frac{5}{6}=\frac{8}{9}\).

Ответ: \(\frac{8}{9}\)