Question 751720
 -6x +3x over 5 devided by 4x-8 over 25

GIVEN:  {{{highlight(((-6x+3x)/5)/((4x-8)/25))}}}

{{{((-6x+3)/5)*(25/(4x-8))}}}
{{{((-6x+3)/cross(5))*(cross(5)(5)/(4x-8))}}}


{{{highlight(5(-6x+3)/(4x-8))}}}  about as simple as you can make it but you can rewrite to bring the negative term in numerator away from the left:
{{{highlight(5(3-6x)/(4x-8))}}}