Question

поможіть пж!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

1.)

$\frac{6y + 8x}{xy}$

2.)

$\frac{27 - 28}{30mn} = - \frac{1}{30mn}$

3.)

$\frac{x - 5 - 4x + 8}{4x + 4} = \frac{ 3 - 3x}{4x + 4}$