Breuken haakjesregel (reeks 1)

Bereken

\(+\left(\frac{-13}{15}\right)-\left(\frac{-15}{2}\right)\)

\(+\left(\frac{-13}{15}\right)-\left(\frac{-15}{2}\right)\\= \frac{-13}{15}+\frac{15}{2}\\=\frac{-26}{30}+\frac{225}{30}\\=\frac{-26+225}{30}\\=\frac{199}{30}\)