[tex]1\frac{1}{5} * \frac{1}{10} = \frac{6}{5} * \frac{1}{10} = \frac{6}{50} = \frac{3}{25}[/tex]
[tex]\frac{2}{3} * \frac{3}{5} = \frac{6}{15} = \frac{2}{5}[/tex]
[tex]6\frac{1}{4} : \frac{1}{5} = \frac{25}{4} * \frac{5}{1} = \frac{125}{4} = 31\frac{1}{4}[/tex]
[tex]3\frac{1}{2} : 1\frac{1}{3} = \frac{7}{2} * \frac{3}{4} = \frac{21}{8} = 2\frac{5}{8}[/tex]
[tex](\frac{2}{3})^{2} * 3 - \frac{1}{2} * 0,2 = \frac{4}{9} * \frac{3}{1} - \frac{1}{2} * \frac{1}{5} = \frac{12}{9} - \frac{1}{10} = \frac{4}{3} - \frac{1}{10} = \frac{40}{30} - \frac{3}{30} = \frac{37}{40}[/tex]
[tex]\frac{1}{6} * 4 + \frac{2}{3} : 1\frac{1}{2} = \frac{4}{6} + \frac{2}{3} * \frac{2}{3} = \frac{4}{6} + \frac{4}{9} = \frac{24}{36} + \frac{16}{36} = \frac{40}{36} = 1\frac{4}{36} = 1\frac{1}{9}[/tex]
