\(\frac{7x+2}{3xy^3}:\frac{14x+4}{x^2y}\)
\(=\frac{7x+2}{3xy^3}.\frac{x^2y}{14x+4}\)
\(=\frac{\left(7x+2\right).x^2y}{3xy^3.\left(14x+4\right)}\)
\(=\frac{\left(7x+2y\right).x}{3y^2.\left(14x+4\right)}\)
\(=\frac{7x^2+2xy}{42xy^2+12y^2}.\)
Chúc bạn học tốt!