Question

b+9/b-7 / 6b+54/b-1
divide and simplfy

Answer 1

I couldn't understand exactly what you mean, i'm supposing it:
\[\frac{\frac{b+9}{b+7}}{\frac{6b+54}{b-1}}\]
\[\frac{b+9}{6.(b+9)}.\frac{b-1}{b+7}=\frac{b-1}{6b+42}\]

Answer 2

the answer is (b-1)/6(b-7)

Answer 3

(b+9)/(b-7)/(6b+54)/(b-1) =(b+9)/(b-7)x(b-1)/(6(b+9)) = (b-1)/(6(b-7))