7. Calculati:
VA ROG REPEDE......... DAU COROANA SI 20 PUNCTE

[tex] \frac{17}{31} - \frac{11}{31} + \frac{25}{31} = \frac{31}{31} = 1[/tex]
Răspuns:
[tex] \frac{17}{31} - \frac{11}{31} + \frac{25}{31} \\ \\ = \frac{17 - 11 + 25}{31} \\ \\ = \frac{31}{31 } \\ \\ = \bf\pink{\boxed{1}}[/tex]