Question 1090176
{{{(a+3)/(a+1)+ (a^2-2a-15)/(a^2 +5a+6)}}}

{{{(a+3)/(a+1)+ (a^2-5a+3a-15)/(a^2 +2a+3a+6)}}}

{{{(a+3)/(a+1)+ ((a^2-5a)+(3a-15))/((a^2 +2a)+(3a+6))}}}

{{{(a+3)/(a+1)+ (a(a-5)+3(a-5))/(a(a +2)+3(a+2))}}}

{{{(a+3)/(a+1)+((a + 3) (a - 5))/((a + 3) (a + 2))}}}

{{{(a+3)/(a+1)+(cross((a + 3)) (a - 5))/(cross((a + 3)) (a + 2))}}}


{{{(a+3)/(a+1)+(a - 5)/(a + 2)}}}


{{{((a+3)(a + 2))/((a+1)(a + 2))+((a - 5)(a+1))/((a + 2)(a+1))}}}


{{{((a+3)(a + 2)+(a - 5)(a+1))/((a + 2)(a+1))}}}


{{{(a^2 + 5 a + 6+a^2 - 4 a - 5)/((a + 2)(a+1))}}}


{{{(2a^2 + a + 1)/((a + 2)(a+1))}}}