Question 847493
{{{((2/3)*(4/3))/(12/9)}}}

{{{(8/9)/(12/9)}}}

{{{(8/9) * (9/12)}}}

{{{(8/cross(9)) * (cross(9)/12)}}}

{{{8/12  =  (4*2)/(4*3) = (cross(4)*2)/(cross(4)*3) = 2/3}}}