TeX Quellcode:

-\dfrac{1}{21} + \dfrac{2}{5}i + \dfrac{2}{3} + \dfrac{7} {8}i \; = \; -\dfrac{1}{21}+\dfrac{2}{3}+\left(\dfrac{2}{5}+\dfrac{7}{8}\right)i \; = \; \dfrac{13}{21}+\dfrac{51}{40}i