Question

сократите дроби:

16a-2b                         4a-b

8a-b                            2b-8a

Answer 1

$frac{16a-2b}{8a-b}=frac{2(8a-b)}{8a-b}=2$

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$frac{4a-b}{2b-8a}=-frac{4a-b}{2(4a-b)}=-frac{1}{2}=-0,5$

Answer 2

$frac{16a-2b}{8a-b}=frac{2cdot(8a-b)}{(8a-b)}=2$

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$frac{4a-b}{2b-8a}=frac{4a-b}{-8a+2b}=frac{4a-b}{-(8a-2b)}=-frac{4a-b}{8a-2b}=-frac{(4a-b)}{2(4a-b)}=-frac{1}{2}=-0,5$