Question 62604
{{{(4/x^8) divided by (16/x^5)}}}

Think back to how you did division of fractions. Invert the divisor (finds its reciprocal) and change the sign to multiply. So this problem could be written as
{{{(4/x^8) *(x^5/16)}}}
{{{(4*x^5)/(x^8*16)}}} Divide top and bottom by 4
{{{x^5/(x^8*4)}}}Divide top and bottom by x^5
{{{1/(4x^3)}}}