Wie ist der Rechenweg??

Hallo also:

$$\begin{gathered} {\displaystyle 5(\frac{3}{5}\mathrm{h<mspace\; width="0.12em"></mspace>}+0,6\mathrm{i<mspace\; width="0.12em"></mspace>})\mathrm{²<mspace\; width="0.12em"></mspace>}-5(0,6\mathrm{i<mspace\; width="0.12em"></mspace>}-\frac{3}{5}\mathrm{h<mspace\; width="0.12em"></mspace>})\mathrm{²<mspace\; width="0.12em"></mspace>}= \\ 5(\frac{9}{25}\mathrm{h<mspace\; width="0.12em"></mspace>}+\frac{6}{5}\mathrm{h<mspace\; width="0.12em"></mspace>}*1,2\mathrm{i<mspace\; width="0.12em"></mspace>}+0,36\mathrm{i<mspace\; width="0.12em"></mspace>})-5(0,36\mathrm{i<mspace\; width="0.12em"></mspace>}-1,2\mathrm{i<mspace\; width="0.12em"></mspace>}*\frac{6}{5}\mathrm{h<mspace\; width="0.12em"></mspace>}+\frac{9}{25}\mathrm{h<mspace\; width="0.12em"></mspace>})= \\ \frac{9}{5}\mathrm{h<mspace\; width="0.12em"></mspace>}+\frac{54}{25}\mathrm{h<mspace\; width="0.12em"></mspace>}*6\mathrm{i<mspace\; width="0.12em"></mspace>}+1,8\mathrm{i<mspace\; width="0.12em"></mspace>}-1,8\mathrm{i<mspace\; width="0.12em"></mspace>}+6\mathrm{i<mspace\; width="0.12em"></mspace>}*\frac{54}{25}\mathrm{h<mspace\; width="0.12em"></mspace>}+\frac{9}{25}\mathrm{h<mspace\; width="0.12em"></mspace>}= \\ 8\frac{571}{625}\mathrm{h<mspace\; width="0.12em"></mspace>}+12\mathrm{i<mspace\; width="0.12em"></mspace>}} \end{gathered}$$

mein Pc könnte auch spinnen ...prüfe das Ganze lieber nochmal nach ;-)