Question

$frac{3x}{y+1} : frac{y+ y^{2} }{9}$

Answer 1

$frac{3x}{y+1}: frac{y+y^2}{9} = frac{3x}{y+1}* frac{9}{y+y^2} = frac{3x}{y+1}* frac{9}{y(1+y)} = \ frac{27x}{y(1+y)^2}$