Question

Сросно пж Сократить дробь

Answer 1

$\frac{ax-bx}{ax+bx} =\frac{x(a-b)}{x(a+b)} =\frac{a-b}{a+b} \\\\\frac{m^{2} }{m^{2}+mn} =\frac{m^{2} }{m(m+n)} =\frac{m}{m+n} \\\\\frac{x^{2}-xy }{xy} =\frac{x(x-y)}{xy} =\frac{x-y}{y} \\\\\frac{k^{2}-2k}{4k-8} =\frac{k(k-2)}{4(k-2)} =\frac{k}{4}$

Готово