Question 422979
{{{(ab-5a+3b-15)/(ab-5a-2b+10)}}}


{{{((ab-5a)+(3b-15))/((ab-5a)-(2b-10))}}}...group


{{{(a(b-5)+3(b-5))/(a(b-5)-2(b-5))}}}...factor out {{{a}}} and {{{3}}} in nominator, then {{{a}}} and {{{2}}} in denominator 


{{{((a+3)(b-5))/((a-2)(b-5))}}}


{{{((a+3)cross((b-5)))/((a-2)cross((b-5)))}}}


{{{(a+3)/(a-2)}}}