Question

12x-7/15x + 3x-2/15x ПЖ СРОЧНО 40 Б

Answer 1

Ответ:

$\frac{12x - 7}{15x} + \frac{3x - 2}{15x} \\ \frac{12x - 7 + 3x - 2}{15x} \\ \frac{15x - 9}{15x} \\ \frac{3(5x - 3)}{3 \times 5x} \\ \frac{5x - 3}{5x}$

Answer 2

$\frac{12x-7}{15x} +\frac{3x-2}{15x}=\frac{12x7+3x-2}{15x}=\\\\=\frac{15x-9}{15x}=\frac{3(5x-3)}{15x}=\frac{5x-3}{5x}$