[tex]\dfrac{2}{8}=2:8=0.25\\\\\dfrac{2}{8}=\dfrac{2:2}{8:2}=\dfrac{1}{4}=\dfrac{1\cdot25}{4\cdot25}=\dfrac{25}{100}=0.25\\---------------------------------\\0.25=\dfrac{25}{100}=\dfrac{25:25}{100:25}=\dfrac{1}{4}[/tex]