1. Сократите дробь: a) \(\frac{39x^{8}y}{26x^{2}y^{2}}\) б) \(\frac{5y}{y^{2}-2y}\) в) \(\frac{3a-3b}{a^{2}-b^{2}}\)

1. Сократите дробь:

1. а)

   \(\frac{39x^{8}y}{26x^{2}y^{2}} = \frac{3 \cdot 13 \cdot x^{2} \cdot x^{6} \cdot y}{2 \cdot 13 \cdot x^{2} \cdot y \cdot y} = \frac{3x^{6}}{2y}\)

2. б)

   \(\frac{5y}{y^{2}-2y} = \frac{5y}{y(y-2)} = \frac{5}{y-2}\)

3. в)

   \(\frac{3a-3b}{a^{2}-b^{2}} = \frac{3(a-b)}{(a-b)(a+b)} = \frac{3}{a+b}\)

Ответ: а) \(\frac{3x^{6}}{2y}\), б) \(\frac{5}{y-2}\), в) \(\frac{3}{a+b}\)