a)
[tex] \frac{5}{6} \times 15 = \frac{5}{6} \times \frac{15}{1} = \frac{65}{6} = 10 \frac{5}{6} [/tex]
b)
[tex]1 \frac{1}{3} \times 1 \frac{1}{5} = \frac{4}{3} \times \frac{6}{5} = \frac{4}{1} \times \frac{2}{5} = \frac{8}{5} = 1 \frac{3}{5} [/tex]
Myślę że pomogłem ;)
