\ANG{
Kürze den jeweiligen Bruchterm so weit wie möglich: \\ \\
$\D (a) \quad \frac {14 a c}{49c} \qquad (b) \quad \frac {2u v + 6 v}{14 v} \qquad (c) \quad \frac {21 x^2}{15 x} \qquad (d) \quad \frac {2xy+6y}{66y+22xy}$
}
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\LSG{
\begin{enumerate}
\item
$\D \frac {14 a c}{49c} = \frac {7 c \cdot 2 a}{7 c \cdot 7} = \frac {2a} 7$
\item
$\D \frac{2u v + 6 v}{14 v} = \frac {2 v \cdot (u + 3)}{2 v \cdot 7} = \frac {u+3} 7$
\item
$\D \frac {21 x^2}{15 x} = \frac {3\cdot x \cdot 7 \cdot x }{3 \cdot x \cdot 5 } = \frac {7 x} 5$
\item
$\D \frac {2xy+6y}{66y+22xy} = \frac {2y \cdot (x+3)}{2 y \cdot (33+11 x)} = \frac {x + 3}{11 \cdot (3+x)} = \frac 1 {11}$
\end{enumerate}
}

