[tex](8 \times 4 \frac{1}{10} ) - (2 \times 3 \frac{2}{5} ) = ( \frac{8}{1} \times \frac{41}{10} ) - ( \frac{2}{1} \times \frac{17}{5} ) = ( \frac{4}{1} \times \frac{41}{5} ) - \frac{34}{5} = \frac{164}{5} - \frac{34}{5} = \frac{130}{5} = 26[/tex]
Myślę że pomogłem ;)
