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

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