Question

$frac{3x}{4x+4y} - frac{6x}{8x+8y}$

Answer 1

$frac{3x}{4x + 4y} - frac{6x}{8x + 8y} = frac{3x}{4(x + y)} - frac{6x}{8(x + y)} = frac{6x - 6x}{8(x + y)} = frac{0}{8(x + y)} = 0$

Answer 2

спасибо))))