1.
[tex]\frac{32}{100} = \frac{16}{50} = \frac{8}{25}\\\\\frac{125}{100} = \frac{5}{4} = 1\frac{1}{4} \\\\\frac{48}{100} = \frac{12}{25} \\\\\frac{220}{100} = \frac{22}{10} = \frac{11}{5} = 2\frac{1}{5}[/tex]
2.
3% = 0,03
12% = 0,12
145% = 1,45
3,8% = 0,038
3.
0,5 = 50%
1,9 = 190%
0,02 = 2%
1/4 = 25%
2/5 = 40%
1 1/10 = 11/10 = 110%
4.
a) 20%
b) 80%
c) 10%
