Question 60697
{{{1/(16*x^4*y^2)-11/(4*x*y)}}}
what you sent is not an equation, 
so I do't know what to do with it,
but if it's equal to zero, and you 
want to simplify it, I'll try
{{{1/(16*x^4*y^2)-11/(4*x*y) = 0}}}
{{{1/(16*(x^4)*y^2) = 11/(4*x*y)}}}
multiply both sides by {{{16(x^4)*y^2}}}
{{{1 = 11*((4x^3)*y)}}}
{{{(44x^3)*y = 1}}}
{{{y = 1 / 44x^3}}}