\ANG{
Berechne:
\begin{enumerate}
\item $\left(-\D\frac27\right)\cdot1\D\frac2{16}:\left(-\D\frac13\right)^2$
\item $-3\D\frac34:\left(-1\D\frac1{15}\right)\cdot\D\frac{5}{6}$
\item $\left(\D\frac23\right)^3:\left(-4\D\frac4{11}\right)\cdot\left[\D\frac23\cdot\left(-1\D\frac12\right)\right]$
\end{enumerate}

}
\LSG{
(a) $-2\D\frac{25}{28}$\ \ \
(b) $2\D\frac{119}{128}$\ \ \
(c) $\D\frac{11}{162}$
}


