Question

Примеры лёгкие










$\frac{3}{x} - \frac{8}{x}$
$\frac{12}{a } - \frac{4}{a}$
​

Answer 1

-\frac{5}{x}

-\frac{8}{a}

Answer 2

Ответ:

$\displaystyle \frac{3}{x}-\frac{8}{x}=\frac{3-8}{x}=-\frac{5}{x}\\\\\\\frac{12}{a}-\frac{4}{a}=\frac{12-4}{a}=\frac{8}{a}$