Question

Resolva as expressões:
a) 1 - 1
      _ _ =
      2 3



b) 1 + 1
      _ _  =
      2 3

Answer 1

a) Tire o M.M.C
= 6


$\frac{1}{2} -\frac{1}{3} \\ \\ \frac{3}{6} - \frac{2}{6}$

Elimine O denominadores


= 3 - 2
= 1


M.M.C = 6
$\frac{1}{2} + \frac{1}{3} \\ \\ \frac{1}{6} + \frac{1}{6}$
= 3 + 2
= 5