Question

2)выполните действие
a)12x-7. 3х-2
_____ +_______=?
15x 5х

Answer 1

$\frac{12x - 7}{15x} + \frac{3x - 2}{5x} = \frac{3(12x - 7) + 3x - 2}{15x} = \frac{36x - 21 + 3x - 2}{15 x} = \frac{39x - 23}{15x}$