20162016=2016
20152015=2015
k cho mình nhé !
\(\frac{20162016}{20152015}=\frac{20160000+2016}{20150000+2015}=\frac{2016\times10000+2016}{2015\times10000+2015}\)
\(=\frac{2016\times\left(10000+1\right)}{2015\times\left(10000+1\right)}=\frac{2016}{2015}\)
\(\frac{20162016}{20152015}\) = \(\frac{2016}{2015}\)
\(\frac{20162016}{20152015}\) = \(\frac{2016x10001}{2015x10001}\) = \(\frac{2016}{2015}\)