Question

Любое задание желательно скидывать поочереди

Answer 1

Ответ:

1.1)

$\frac{15x {}^{2} }{6x + 15x {}^{2} } = \frac{3x \times 5x}{3x(2 + 5x)} = \frac{5x}{2 + 5x}$

2)

$\frac{9x + 9y}{36x {}^{2} - 36y {}^{2} } = \frac{9(x + y)}{(6x - 6y)(6x + 6y)} = \frac{9(x + y)}{6(x - y)6(x + y)} = \\ \frac{9}{36(x - y)} = \frac{1}{4(x - y)}$

$\frac{5}{12a - 12b} - \frac{3}{16a - 16b} = \\ \frac{5}{12(a - b)} - \frac{3}{16(a - b)} = \\ \frac{80 - 36}{192(a - b)} = \\ \frac{44}{192(a - b)} = \\ \frac{11}{48(a - b)}$

2.1)