Question 112698
{{{(x/3 + 3/4)(3x/4-3/5)}}}

{{{((4x+ 3*3)/(3*4))((3x*5-3*4)/(5*4))}}}

{{{(((4x+ 9)/12)((15x -12)/20))}}}...........multiply nominator by nominator, and denominator by denominator

{{{(((4x+ 9)(15x -12))/240))}}}.............

{{{(60x^2 - 48x + 135x-108)/240}}}

{{{(60x^2  + 87x - 108)/240}}}....divide each term by {{{240}}}

{{{0.25x^2  + 0.36x - 0.45}}}