Question 550948
{{{1/2+((2/3)/(3/4)) - ((4/5) * (5/6))}}}=?
{{{1/2+((2/3)/(3/4))-((4/5)*(5/6))}}} = {{{1/2+((2/3)(4/3))-(4*5/(5*6))}}} = {{{1/2+(2*4/(3*3))-(4*cross(5)/(cross(5)*6))}}} = {{{1/2+8/9-4/6}}} = {{{9/18+16/18-12/18}}} = 13/18