Răspuns:
-57/28
Explicație pas cu pas:
[tex]\displaystyle{ -2\frac{3}{14} + \frac{5}{28} = -\frac{2 \cdot 14 + 3}{14} + \frac{5}{28} }[/tex]
[tex]\displaystyle{ = - ^{2)}\frac{31}{14} + \frac{5}{28} }[/tex]
[tex]\displaystyle{ = \frac{-62 + 5}{28} }[/tex]
[tex]\displaystyle{ = -\frac{57}{28} }[/tex]
