Question

simplificando a expressão obtemos​

Answer 1

$\frac{9^2.27^3}{243^3}=\frac{(3^2)^2.(3^3)^3}{(3^5)^3}=\frac{3^4.3^9}{3^{15}}=\frac{3^{13}}{3^{15}}=\frac{1}{3^2}=\frac{1}{9}$