13) 27 % от \(4\frac{4}{9}\)

\(4\frac{4}{9} = \frac{40}{9}\), а \(27\% = \frac{27}{100}\).

\(\frac{27}{100} \cdot \frac{40}{9} = \frac{6}{5} = 1\frac{1}{5}\).

Ответ: \(1\frac{1}{5}\).