[tex]\frac{3}{4} = \frac{3\cdot25}{4\cdot25} = \frac{75}{100} = 0,75\\\\\frac{5}{8} = \frac{5\cdot125}{8\cdot125} = \frac{625}{1000} = 0,625\\\\3\frac{1}{2}= 3\frac{1\cdot5}{2\cdot5} = 3\frac{5}{10} = 3,5\\\\4\frac{2}{5} = 4\frac{2\cdot2}{5\cdot2} = 4\frac{4}{10} = 4,4\\\\1\frac{9}{20} = 1\frac{9\cdot5}{20\cdot5} = 1\frac{45}{100} = 1,45\\\\\frac{11}{25} = \frac{11\cdot4}{25\cdot4} = \frac{44}{100} = 0,44[/tex]
