Question

Gấp ạ

Answer 1

a: \(\frac{2ac}{3b}\cdot\frac{-6b^3}{8a^2c}=\frac{2ac}{8a^2c}\cdot\frac{-6b^3}{3b}=\frac{1}{4a}\cdot\frac{-2b^2}{1}=\frac{-b^2}{2a}\)

b: \(\frac{3a^2}{10b^3}\cdot\frac{15b}{9a^4}=\frac{3a^2}{9a^4}\cdot\frac{15b}{10b^3}=\frac{1}{3a^2}\cdot\frac{3}{2b^2}=\frac{1}{2a^2b^2}\)