Odpowiedź :
Odpowiedź:
[tex]0,4:\dfrac{5}{2}=\dfrac{4}{10}:\dfrac{5}{2}=\dfrac{2}{5}*\dfrac{2}{5}=\dfrac{4}{25}\\\\\\\dfrac{27}{20}:0,9=\dfrac{27}{20}:\dfrac{9}{10}=\dfrac{\not27^3}{\not20_{2} }*\dfrac{\not10^1}{\not9_{1}}=\dfrac{3}{2}=1\dfrac{1}{2}[/tex]