Question 62604
divide 4/x^8 by 16/x^5
When dividing fractions we multiply by the reciprocal.  (In English, flip the second fraction over and multiply.)
{{{(4/x^4)*(x^5/16)}}}
{{{4x^5/(16x^4)}}}
{{{4x^4*x/(4*4x^4)}}}  Find the numerator and denominator's like factors.
{{{cross(4x^4)*x/(4*cross(4x^4))}}}  Cancel them, because a/a=1
{{{highlight(x/4)}}}
Happy Calculating and Happy Thanksgiving!!!