\(1,2=1,20=1,200=1,2000\)
\(0,10=0,1=0,100=0,1000\)
\(6=6,0=6,00=6,000\)
\(1,2=\dfrac{6}{5}=\dfrac{12}{10}=\dfrac{24}{20}=\dfrac{36}{30}\\ b,0,10=\dfrac{1}{10}=\dfrac{2}{20}=\dfrac{100}{1000}=\dfrac{60}{600}\\ c,6=\dfrac{18}{3}=\dfrac{6}{1}=\dfrac{24}{4}\)