Breuken verm. (reeks 3)

Vermenigvuldig de breuken

\(\frac{-7}{3} . \left(\frac{-3}{4}\right).\frac{4}{9}\)

\(\frac{-7}{3} . \left(\frac{-3}{4}\right).\frac{4}{9}\\=+\frac{7.3.4}{3.4.9}\\=\frac{84}{108}\\=\frac{7}{9}\)