Breuken . en :

Bereken

\(\frac{3}{-13} . \frac{3}{10}.\left(\frac{12}{-3}\right)\)

\(\frac{3}{-13} . \frac{3}{10}.\left(\frac{12}{-3}\right)\\=+\frac{3}{13}.\frac{3}{10}.\frac{4}{1}\\=+\frac{3.3.4}{13.10.1}\\=\frac{36}{130}\\=\frac{18}{65}\)