Odpowiedź:
[tex]a)\ \ \dfrac{125\cdot15}{3^3\cdot5^4}=\dfrac{5^3\cdot15}{3^3\cdot5^4}=\dfrac{5^3\cdot5^1\cdot3^1}{3^3\cdot5^4}=\dfrac{\not5^4\cdot3}{3^3\cdot\not5^4}=\dfrac{3}{3^3}=\dfrac{3}{27}=\dfrac{1}{9}\\\\\\b)\ \ \dfrac{0,25^3:0,5^3}{5^3}=\dfrac{(0,25:0,5)^3}{5^3}=\dfrac{0,5^3}{5^3}=(0,5:5)^3=0,1^3=0,001[/tex]
