Question

1/2+[2/3+(-5/4)] respondam

Answer 1

Resposta:

$\sf \dfrac{1}{2} + \left[ \dfrac{2}{3} + \left(- \dfrac{5}{4}\right) \right]$

$\sf \dfrac{1}{2} + \left[ \dfrac{2}{3} - \dfrac{5}{4}\right]$

$\sf \dfrac{1}{2} + \left[ \dfrac{8}{12} - \dfrac{15}{12}\right]$

$\sf \dfrac{1}{2} + \left[ - \dfrac{7}{12} \right]$

$\sf \dfrac{1}{2} - \dfrac{7}{12}$

$\sf \dfrac{6}{12} - \dfrac{7}{12}$

$\sf - \dfrac{1}{12}$

Explicação passo-a-passo: