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%% B: Aufgaben zu Bruchrechnungen
%%
\begin{frage}[2]
  Vereinfachen Sie:
  \leserluft{}
 $$(x+1)\cdot{} \frac{1-\frac{1}{x}}{1+\frac{1}{x}} =  .......... $$\TRAINER{$x-1$}
  
\platzFuerBerechnungen{5}  
\end{frage}
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