\[4\frac{2}{3}m - m + 1\frac{1}{12}m = m \cdot \left( 4\frac{2}{3} - 1 + 1\frac{1}{2} \right) =\]
\[= m \cdot \left( 3\frac{2^{\backslash 4}}{3} + 1\frac{1}{12} \right) = m \cdot 4\frac{8 + 1}{12} =\]
\[= 4\frac{9}{12}m = 4\frac{3}{4}\text{m.}\]
\[при\ \ m = \frac{8}{19}:\]
\[4\frac{3}{4} \cdot \frac{8}{19} = \frac{19}{4} \cdot \frac{8}{19} = \frac{8}{4} = 2.\]
\[Ответ:2.\]