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- %% A: Einfache Aufgaben zu Bruchrechnungen
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- \begin{frage}[1]
- Subtrahieren Sie:
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- \leserluft{}
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- $$\frac{7}{b-a} - \frac{2}{a-b} = .......... $$\TRAINER{$\frac{9}{b-a}$}
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- \platzFuerBerechnungen{4}
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- \end{frage}
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