Ответ:
- \(\frac{a(x-2)}{b(x-2)}=\frac ab\).
- \(\frac{4(c+3)^2}{(c+3)^3}=\frac4{c+3}\).
- \(\frac{5y(b-7)}{10(b-7)^2}=\frac{y}{2(b-7)}\).
- \(\frac{p^3(q-1)^4}{p^6(q-1)^2}=\frac{(q-1)^2}{p^3}\).
- \(\frac{2x-2b}{3(x-b)}=\frac{2(x-b)}{3(x-b)}=\frac23\).
- \(\frac{5a-10y}{2a-4y}=\frac{5(a-2y)}{2(a-2y)}=\frac52\).
Ответ: а) \(\frac ab\); б) \(\frac4{c+3}\); в) \(\frac{y}{2(b-7)}\); г) \(\frac{(q-1)^2}{p^3}\); д) \(\frac23\); е) \(\frac52\).
