Question

7+a-b (para a=2/3 e b= -1/2)

Answer 1

Resposta:

$7 + \frac{2}{3} - ( - \frac{1}{2} ) \\ \\ 7 + \frac{2}{3} + \frac{1}{2} \\ \\ \frac{42 + 4 + 3}{6} \\ \\ \frac{49}{6}$