Question 127590
 {{{((1/c)-(1/(3-3c)))/((1/(1-c))-(3/c))}}} 


{{{((1/c)-(1/3(1-c)))/((c-3(1-c))/(1-c)c)}}} 


{{{((1*3(1-c)-c)/3c(1-c))/((c-3(1-c))/(1-c)c)}}} 


{{{((3-3c-c)/3c(1-c))/((c-3+3c)/(1-c)c)}}} 


{{{((3-4c)/3c(1-c))/((-3+4c)/(1-c)c)}}} 


{{{((3-4c)(1-c)c)/3c(1-c)(-3+4c)) }}}.....factor out {{{-1}}} from {{{(3-4c)}}} 


{{{(-1(-3+4c)cross((1-c))cross(c))/3cross(c)cross((1-c))(-3+4c)) }}}


 {{{(-1cross((-3+4c))/3cross((-3+4c))) }}} 


{{{-1/3}}}