\(1\frac{2}{5} = \frac{7}{5}\);
\(3\frac{5}{9} = \frac{32}{9}\);
\(2\frac{3}{11} = \frac{25}{11}\);
\(8\frac{11}{15} = \frac{131}{15}\);
\(9\frac{1}{20} = \frac{181}{20}\).