\(\left(\frac{1}{9}\right)^{15}\) : \(\left(\frac{1}{3}\right)^{30}\)= \(\left(\frac{1}{9}\right)^{15}\): \(\left(\frac{1}{3}\right)^{2.15}\)= \(\left(\frac{1}{9}\right)^{15}\): \(\left(\left(\frac{1}{3}\right)^2\right)^{15}\)= \(\left(\frac{1}{9}\right)^{15}\): \(\left(\frac{1}{9}\right)^{15}\)= 1