[tex]\it \dfrac{2}{10}:\dfrac{20}{10}=\dfrac{2}{10}\cdot\dfrac{10}{20}=\dfrac{\ 20^{(20}}{200}=\dfrac{1}{10}\\ \\ \\ Sau:\\ \\ \it \dfrac{2}{10}:\dfrac{20}{10}=\dfrac{2}{10}:2=\dfrac{1}{10}[/tex]
Salut!
[tex] \frac{2}{10} \div \frac{20}{10} = \frac{2}{10} \div 2 = \frac{1}{10} [/tex]
