Question 74557
{{{(16x^3/y^4)/(18x^3/-5y^2)}}}
{{{(16x^3/y^4)(-5y^2/18x^3)}}}Multiply by the reciprocal of the 2nd fraction
{{{(16*cross(x^3)/y^4)(-5*cross(y^2)/18*cross(x^3))}}}Cancel like terms
{{{(8/y^2)(-5/9)}}}Simplify
{{{(-40/9y^2)}}}
You got the right answer.