Breuken verm. (reeks 3)

Vermenigvuldig de breuken

\(\frac{-6}{11} . \left(\frac{-7}{-4}\right).\left(\frac{-9}{11}\right)\)

\(\frac{-6}{11} . \left(\frac{-7}{-4}\right).\left(\frac{-9}{11}\right)\\=+\frac{6.7.9}{11.4.11}\\=\frac{378}{484}\\=\frac{189}{242}\)