[tex]...=\frac{3}{10}\;;\\
...=2\frac{7}{100}=\frac{207}{100}=\frac{207}{10^2}\;;\\
...=\frac{43}{1000}=\frac{43}{10^3}\;;\\
...=20\frac{8}{?} \;\;solicitare \;incompleta !\\
...=6\frac{7}{1000}=\frac{2007}{1000}=\frac{2007}{10^3}\;;\\
...=\frac{9}{100}=\frac{9}{10^2}\;;[/tex]
