Question 1001749

simplify the expression


{{{(a^2-2ab+b^2)/(5a^2-5b^2)}}}


{{{(a-b)^2/5(a^2-b^2)}}}


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


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


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