Odpowiedź:
[tex] \frac{9}{10 } \times 8 = \frac{9}{10} \times \frac{8}{1} = \frac{9}{5} \times \frac{4}{1} = \frac{ 36}{5} = 7\ \frac{1}{5} [/tex]
[tex] \frac{3}{5} \times 15 = \frac{3}{5} \times \frac{15}{1} = \frac{3}{1} \times \frac{3}{1} = \frac{9}{1} = 9[/tex]
Miłego dnia<3
