22,5m dikali4 2/5m-1/4=

22,5m x 4²/5m - ¼m
= 99m - ¼m
= 98,75m

[tex]22.5 \: m \: \times 4 \frac{2}{5} \: m - \frac{1}{4} \\ = 22 \frac{1}{2} \: m \: \times 4 \frac{2}{5} \: m \: - \frac{1}{4} \\ = ( \frac{45}{2} \times \frac{22}{5} ) \: m - \frac{1}{4} \\ = 99 \: m \: - \frac{1}{4} [/tex]