Сокращение дробей

1. $$\frac{24a^6b^4}{16a^3b^7} = \frac{3 \times 8 a^3 a^3 b^4}{2 \times 8 a^3 b^4 b^3} = \frac{3a^3}{2b^3}$$
2. $$\frac{15x-10xy}{5xy} = \frac{5x(3-2y)}{5xy} = \frac{3-2y}{y}$$