Question 405615
{{{((2/(y-1))-(2/y))/((3/(y-1))-(1/(1-y)))}}} ___ multiplying by (y-1)/(y-1) ___ {{{(2-(2(y-1)/y))/(3+1)}}}


multiplying 1st term in numerator by y/y ___ {{{((2y/y)-(2(y-1)/y))/4}}} ___ {{{((2y-2y+2)/y)/4}}}


you can finish from here...