[tex] \frac{x}{y} = \frac{2}{5} [/tex]
x si y pot fi orice multiplii de 2 si 5 de exemplu:
[tex] \frac{x}{y} = \frac{4}{10} = \frac{2*2}{5*2} = \frac{2}{5} [/tex]
[tex] \frac{x}{y} = \frac{12}{30} = \frac{2*6}{5*6} = \frac{2}{5} [/tex]
[tex] \frac{x}{y} = \frac{18}{45} = \frac{2*9}{5*9} = \frac{2}{5} [/tex]
