Răspuns:
orimadata calculam cât este 2/3%:
[tex] \frac{2}{3} \times \frac{1}{100} [/tex]
[tex] \frac{1}{3} \times \frac{1}{50} [/tex]
[tex] \frac{1}{150} [/tex]
[tex] \frac{1}{150} \times 60[/tex]
[tex] \frac{1}{50} \times 20[/tex]
[tex] \frac{20}{50} [/tex]
[tex] \frac{2}{5} [/tex]
