8.
[tex]\frac{1}{2} = 0,5\\\\\frac{1}{8} =0,125\\\\3\frac{1}{2} = 3,5\\\\1\frac{2}{5} = 1,4\\\\\frac{1}{4} = 0,25\\\\\frac{1}{5} = 0,2\\\\\frac{3}{4} = 0,75\\\\\frac{3}{8} = 0,375[/tex]
9.
[tex]a) \ \frac{9}{50} = \frac{9\cdot2}{50\cdot2} = \frac{18}{100}\\\\b) \ \frac{21}{25} = \frac{21\cdot4}{25\cdot4} = \frac{84}{100}\\\\c) \ \frac{13}{20} = \frac{13\cdot5}{20\cdot5} = \frac{65}{100}\\\\d) \ 5\frac{9}{50} = 5\frac{9\cdot2}{50\cdot2} = 5\frac{18}{100}\\\\e) \ 2\frac{4}{25} = 2\frac{4\cdot4}{25\cdot4} = 2\frac{16}{100}\\\\f) \ 3\frac{2}{50} = 3\frac{2\cdot2}{50\cdot2} = 3\frac{4}{100}[/tex]
10.
[tex]a) \ \frac{8}{12} = \frac{4}{6} = \frac{2}{3} = \frac{10}{15}\\\\b) \ \frac{40}{15} = \frac{8}{3} = 2\frac{2}{3} - 2\frac{6}9}\\\\c) \ 1\frac{4}{25} = 1\frac{16}{100} = 1,16 = \frac{116}{100}\\\\d) \ 32\frac{16}{20} = 3\frac{4}{5} = 3\frac{8}{10} = 3,8\\\\e) \ 0,45 = \frac{45}{100} = \frac{9}{20} = \frac{18}{40}[/tex]
