\(\dfrac{x}{12}=\dfrac{3}{4}\times\dfrac{3}{3}=\dfrac{9}{12}\)
\(\dfrac{x}{12}\) < \(\dfrac{3}{4}\)
\(\dfrac{x}{12}\) < \(\dfrac{3\times3}{4\times3}\)
\(\dfrac{x}{12}\) < \(\dfrac{9}{12}\)
\(x\) < 9
Vì 0<1 <2 <3 < 4 < 5 < 6 < 7 < 8 < 9
Vậy \(x\) = 0; 1; 2; 3; 4; 5; 6; 7; 8