Breuken verm. (reeks 3)

Vermenigvuldig de breuken

\(\frac{-10}{11} . \left(\frac{-12}{-9}\right).\frac{3}{4}\)

\(\frac{-10}{11} . \left(\frac{-12}{-9}\right).\frac{3}{4}\\=-\frac{10}{11}.\frac{4}{3}.\frac{3}{4}\\=-\frac{10.4.3}{11.3.4}\\=-\frac{120}{132}\\=-\frac{10}{11}\)