Question

qual o resultado de 1/3 + 3/9

Answer 1

$\frac{1}{3} +\frac{3}{9} =\\ \\ mmc(3,9)=9\\ \\ \frac{3+3}{9} =\frac{6}{9} ~~simplificando~~\frac{6:3}{9:3} =\frac{2}{3}$