Respuesta :

[tex]\begin{gathered} \frac{4}{19}\approx0.21 \\ \frac{4}{12}\approx0.33 \\ \frac{2}{3}\approx0.67 \end{gathered}[/tex]

Therefore:

[tex]0.21<0.33<0.67[/tex]

The smallest fraction is 4/19.