Răspuns:
[tex] \frac{3}{5} + \frac{3}{5} = \frac{6}{5} \\ \frac{2}{5} + \frac{2}{5} + \frac{2}{5} = \frac{6}{5} \\ \frac{2}{5 } + \frac{2}{5} + \frac{2}{5} + \frac{2}{5} + \frac{2}{5} + \frac{2}{5} + \frac{2}{5} = \frac{14}{5} \\ \frac{7}{5} + \frac{7}{5} = \frac{14}{5} \\ \frac{3}{4} + \frac{3}{4} + \frac{3}{4} + \frac{3}{4} + \frac{3}{4} + \frac{3}{4} = \frac{18}{4} = \frac{9}{2} \\ \frac{3}{2} + \frac{3}{2} + \frac{3}{2} = \frac{9}{2} \\ [/tex]
g) și h) aduna ca în modelul de sus
