Răspuns:
Hey! ツ
a) [tex]\dfrac{2}{7} + \dfrac{3}{7} + \dfrac{9}{7} = \dfrac{14}{7} = 2[/tex]
b) [tex]2\dfrac{1}{3} + 1\dfrac{3}{4} = \dfrac{7}{3} + \dfrac{7}{4} = \dfrac{28}{12} + \dfrac{21}{12} = \dfrac{49}{12} = 4\dfrac{1}{12}[/tex]
Succes! ♡
