\ANG{Berechne:
(a)\quad $\D\frac{3}{5}\cdot 3{,}5$\qquad
(b)\quad $\D\frac{3}{7}\cdot 3{,}5$\qquad
(c)\quad $\D\frac{16}{9}\cdot 1{,}125$\qquad
(d)\quad $\D\frac{16}{23}\cdot 3{,}45$
}
\LSG{
(a)\quad $\D 2{,}1$\qquad
(b)\quad $\D 1{,}5$\qquad
(c)\quad $\D 2$\qquad
(d)\quad $\D 2\frac{2}{5}$
}
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