[tex]e)0,72:1\frac{2}{7} =\frac{72}{100} :\frac{9}{7} =\frac{\not72}{100} \cdot\frac{7}{\not9}=\frac{\not8}{\not100} \cdot7=\frac{2}{25} \cdot7=\frac{14}{25}[/tex]
[tex]f)2\frac{2}{5} :0,024=2\frac{2}{5} :\frac{\not24}{\not1000} =\frac{12}{5}: \frac{3}{125} =\frac{\not12}{\not5} \cdot\frac{\not125}{\not3} =4\cdot25=100[/tex]