%% 
%%  Die DANTE-Edition
%%  Ein Beispiel der LaTeX Referenz
%%  3. Auflage
%% 
%% 
%%  Copyright (C) 2013 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
%% 
\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{193.16928pt}
\setlength\parindent{0pt}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
%StartShownPreambleCommands
\usepackage{ccfonts}
\usepackage{xfrac}
\DeclareInstance{xfrac}{ccr}{text}{
  slash-symbol-font = ptm,
  numerator-font    = cmr,
  numerator-format  = \textbf{#1}}
\DeclareInstance{xfrac}{eur}{math}{
  slash-symbol-font = mdugm,
  scale-factor      = 0.5}
%StopShownPreambleCommands
\begin{document}
\huge
{\fontfamily{cmr}\selectfont\sfrac{3}{4}},
\sfrac{3}{4}, foo, \sfrac[eur]{3}{4},
\fontfamily{eur}\selectfont
\sfrac{3}{4}, foo, $\sfrac{3}{4}$
\end{document}
