Question 519600
{{{(a/b^2)/(a^2/b^3)}}}
Invert the dividing fraction and multiply (like you said)
{{{a/b^2}}} * {{{b^3/a^2)}}}
Cancel a into a^2, cancel b^2 in to b^3
{{{1/1}}} * {{{b/a}}} which is just {{{b/a}}}