Question

efectúa.
2/3 - (1/2 - 1/3)

Answer 1

$\frac{2}{3}-( \frac{1}{2}- \frac{1}{3}) \\ \\ \frac{2}{3}-( \frac{1(3)-1(2)}{(2)(3)}) \\ \\ \frac{2}{3}-( \frac{3-2}{6}) \\ \\ \frac{2}{3}- \frac{1}{6} \\ \\ \frac{2(6)-1(3)}{(3)(6)}...... \frac{12-3}{18}..... \frac{9}{18}= \frac{1}{2}$