a)
[tex]\frac{1}{2} =\frac{50}{100} =0,5\\\\\frac{1}{5} =\frac{20}{100} =0,2\\\\\frac{2}{5} =\frac{40}{100} =0,4\\\\\frac{4}{5}=\frac{80}{100} =0,8[/tex]
b)
[tex]\frac{1}{4} =\frac{25}{100} =0,25\\\\\frac{3}{4} =\frac{75}{100} =0,75\\\\\frac{7}{25}=\frac{28}{100} =0,28\\\\\frac{7}{50}=\frac{14}{100} =0,14[/tex]
