$\frac{2}{3}$X - $\frac{1}{2}$X = $\frac{5}{12}$
($\frac{2}{3}$ - $\frac{1}{2}$) × X = $\frac{5}{12}$
($\frac{4}{6}$ - $\frac{3}{6}$) × X = $\frac{5}{12}$
$\frac{1}{6}$ × X = $\frac{5}{12}$
X = $\frac{5}{12}$ : $\frac{1}{6}$
X = $\frac{5}{12}$ × $\frac{6}{1}$
X = $\frac{30}{12}$
Vậy X = $\frac{30}{12}$
Chúc bạn học tốt.