Question

у-3/9y+1-y/2y=
Помогите

Answer 1

$frac{y-3}{9y} + frac{1-y}{2y} = frac{2(y-3) + 9(1-y)}{2*9*y} = frac{2y-6 +9 -9y}{18y} = frac{3-7y}{18y}$