[tex]\displaystyle\\
\frac{a}{2} = \frac{b}{3} =\frac{c}{4} \\\\
\text{2 este cel mai mic numitor.}\\
\Longrightarrow ~~~a\text{ este cel mai mic numar}\\
\Longrightarrow ~~~a=12 \\\\
\frac{12}{2} = \frac{b}{3} =\frac{c}{4} \\\\
b = \frac{12\times 3}{2} = 6\times 3 = 18\\\\
c = \frac{12\times 4}{2} = 6\times 4 = 24[/tex]
