[tex] (\frac{5}{8}) ^{3} : (\frac{1}{2}) ^{3} : (\frac{5}{2}) ^{2} = \frac{ 5^{3} }{ 2^{9} } * 2^{3} * \frac{ 2^{2} }{ 5^{2} } = \frac{5}{2^{4}}= \frac{5}{16}
[/tex]
[tex] 5^{3} [/tex] s-a simplificat cu [tex]5^{2}[/tex] iar [tex]2^{9}[/tex] cu [tex]2^{3} *2^{2}[/tex]