A)20 min dintr-o ora:[tex] \frac{1}{3} [/tex]
6 luni dintr-un an:[tex] \frac{1}{2} [/tex]
o saptamana dintr-o luna:[tex] \frac{1}{4} [/tex]
B)[tex] \frac{2}{2}, \frac{2}{4}, \frac{2}{6}, \frac{2}{8}, \frac{4}{2}, \frac{4}{4}, \frac{4}{6}, \frac{4}{8}, \frac{6}{2}, \frac{6}{4}, \frac{6}{6}, \frac{6}{8}, \frac{8}{2}, \frac{8}{4}, \frac{8}{6}, \frac{8}{8} [/tex]
