Răspuns:
[tex]= (\frac{2}{10})^{3} -\frac{1}{5^{3} } +\frac{1}{10} =\frac{2^{3} }{10^{3} } -\frac{1}{5^{3} } +\frac{1}{10}=[/tex]
aducem primele doua fractii la acelasi numitor comun:
c.m.m.m.c. ([tex]10^{3}[/tex], [tex]5^{3}[/tex]) = [tex]10^{3}[/tex]
amplificam a doua fractie cu [tex]10^{3} :5^{3} =2^{3}[/tex] si avem:
[tex]= \frac{2^{3} }{10^{3} } -\frac{2^{3} }{10^{3} } +\frac{1}{10} =\frac{1}{10}[/tex]
Explicație pas cu pas:
