Question

Помогите пожалуйста!!! ​

Answer 1

Объяснение:

$1)\ \frac{a^2}{a^2+ab}=\frac{a^2}{a*(a+b)}=\frac{a}{a+b} .\\ 2)\ \frac{pq^3}{p^2q-pq^2}=\frac{pq^3}{pq*(p-q)}=\frac{q^2}{p-q},\\ 3)\ \frac{7a+14b}{3a+6b}=\frac{7*(a+2b)}{3*(a+2b)}=\frac{7}{3}.\\ 4)\ \frac{2m^2-mn}{2mn-n^2} =\frac{m*(2m-n)}{n*(2m-n)} =\frac{m}{n}.\\ 5)\frac{3a-6b}{12b-6a}= \frac{3*(a-2b)}{6*(2b-a)}=-\frac{a-2b}{2*(a-2b)}=-\frac{1}{2}=-0,5.\\ 6)\ \frac{x^2-2xy}{2y^2-xy} =\frac{x*(x-2y)}{y*(2y-x)} =-\frac{x*(x-2y)}{y*(x-2y)} =-\frac{x}{y} .$