Question

1/3 − 2/4= − 2/3 + 2/4 PROCEDIMIENTO PROCEDIMIENTO
PORFA

Answer 1

$\frac{1}{3} - \frac{2}{4} = - \frac{2}{3} + \frac{2}{4} \\ \\ \frac{1}{3}( \frac{2}{2}) - \frac{1}{2}( \frac{3}{3} ) = - \frac{2}{3} ( \frac{2}{2} ) + \frac{1}{2} ( \frac{3}{3} ) \\ \\ \frac{2}{6} - \frac{3}{6} = - \frac{4}{6} + \frac{3}{6} \\ \\ - \frac{1}{6} = - \frac{1}{6}$