Răspuns:
[tex] \frac{ - 6}{8} + \frac{13}{17} = \\ \\ = \frac{ - 3}{4} + \frac{13}{17} = \\ \\ = \frac{ - 51}{68} + \frac{52}{68} = \\ \\ = \frac{1}{68} [/tex]
Succes! ♡︎♥︎♡︎