\(27^2:25^3=\left(3^3\right)^2:\left(5^2\right)^3=3^6:5^6=\left(\frac{3}{5}\right)^6=\frac{729}{15625}\)
Theo bài ra , ta có : \(27^2:25^3=\frac{729}{15625}\)
\(27^2=\left(3^3\right)^2=3^6\)
\(25^3=\left(5^2\right)^3=5^6\)
\(\frac{3^6}{5^6}=\left(3:5\right)^6=\left(\frac{3}{5}\right)^6=\frac{729}{15625}\)