Question 56445
simplify:
One method is to multiply the top and bottom of a complex number by the LCD of the fraction:
{{{25x^2/(5/x)}}}
{{{25x^2*x/(5*x/x)}}}
{{{25x^3/5}}}
{{{5*5x^3/5}}}
{{{highlight(5x^3)}}}
Another way to deal with it is to treat it as a division of fractions:
{{{25x^2}}} divided by {{{5/x}}}  Flip the second fraction and multiply:
{{{(25x^2)*(x/5)}}}
{{{25x^3/5}}}
{{{highlight(5x^3)}}}
Pick your favorite method.
Happy Calculating!!!