Question

please answer fast
​

Answer 1

$(\frac{a}{b})^4*( \frac{4ab}{3a})^2*(\frac{b}{2a})^3\\ \\=[\frac{a^4}{b^4}*\frac{16a^2b^2}{9a^2}]*\frac{b^3}{8a^3}\\ \\=[\frac{16a^4}{9b^2}*\frac{b^3}{8a^3}]\\ \\=\frac{2ab}{9}$