\input{preamble-standalone.ltx}
\begin{document}

% Ex. No. 23 (Section  6.2.4 : \tkzname{frac})

\begin{tikzpicture}
\tkzInit[xmax=1.75,xstep=0.33333]
\tkzDrawX[label=$t$,text=blue,color=red]
\tkzLabelX[frac=3,text=blue,below = 6pt]
\end{tikzpicture}

\end{document}