Question 327341
{{{(x^2-3xy+2y^2)/(2xy-4y^2)}}}
{{{(x^2-2xy-xy+2y^2)/(2y*(x-2y))}}}
{{{(x*(x-2y)-y*(x-2y))/2y*(x-2y)}}}
{{{(x-2y)*(x-y)/(2y*(x-2y))}}}
{{{(x-y)/2y}}}