TeX Quellcode:
\genfrac{}{}{1pt}{0}{-\frac{31}{2r^2}}{\frac{t}{10}} = -\dfrac{31}{2r^2} : \dfrac{t}{10} = -\dfrac{31}{2r^2} \cdot \dfrac{10}{t} = -\dfrac{31}{r^2} \cdot \dfrac{5}{t} = -\dfrac{155}{r^2t}