Calculeaza. VA ROG. DAU CORONITA

Răspuns:
[tex]2 \frac{1}{3} - 1 \frac{2}{3} = \frac{2 \times 3 + 1}{3} - \frac{1 \times 3 + 2}{3} = \frac{7}{3} - \frac{5}{3} = \frac{2}{3} [/tex]