TeX Quellcode:

\genfrac{}{}{1pt}{0}{\frac{38}{-3}}{\frac{19}{4}} = \dfrac{38}{-3} : \dfrac{19}{4} = -\dfrac{38}{3} \cdot \dfrac{4}{19} = -\dfrac{2}{3} \cdot \dfrac{4}{1} = -\dfrac{8}{3}