Question

Ученикам 8 класса ВОПРОС

Answer 1

$\frac{a + b}{6a} - \frac{a - 2b}{6a} = \frac{a + b - (a - 2b)}{6a} = \frac{a + b - a + 2b}{6a} = \frac{3 \times b}{3 \times 2a} = \frac{b}{2a}$

Answer 2

$\frac{a+b}{6a} - \frac{a-2b}{6a} =\frac{a+b-a+2b}{6a} =\frac{3b}{6a} =\frac{b }{2a}$