Question

$\frac{b+a}{a^2b+ab^2} = ?????????????$

Answer 1

$\frac{a+b}{a^{2}.b+a.b^{2}} = \frac{a+b}{a.(a.b+b^{2})} = \frac{a+b}{a.b(a+b)} =\frac{1}{a.b}$