Respuesta :

[tex]\begin{gathered} 3\frac{2}{3}+3= \\ \frac{11}{3}+3= \\ \frac{11}{3}+\frac{3}{1}= \\ \frac{11+9}{3}= \\ \frac{20}{3} \\ \text{therefore} \\ 3\frac{2}{3}+3=\frac{20}{3} \\ \text{and this number is rational.} \end{gathered}[/tex]