1: \(=\dfrac{4^5}{2^{10}}=\dfrac{2^{10}}{2^{10}}=1\)
2: \(=\dfrac{2^7\cdot3^6}{3^5\cdot2^5\cdot2^6}=\dfrac{3}{2^4}=\dfrac{3}{16}\)
3: \(=\dfrac{5^8\cdot2^8}{5^{10}\cdot2^{10}}=\dfrac{1}{100}\)
4: \(=\dfrac{3^{28}}{3^{12}\cdot3^{18}}=\dfrac{1}{3^2}=\dfrac{1}{9}\)
5: \(=\dfrac{3^{10}\cdot3^9}{3^{18}}=3\)
6: \(=\dfrac{9^{12}}{3^{22}}=\dfrac{3^{24}}{3^{22}}=3^2=9\)