anonymous
  • anonymous
Algebra question! Probably not hard, but I am not getting it.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
\[a/b+1 \div a/b-1 \]
phi
  • phi
is this \[ \frac{ \frac{a}{b+1}}{\frac{a}{b-1} } \]?
precal
  • precal
|dw:1370530144712:dw|?

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anonymous
  • anonymous
@phi Yep! That's what I meant.
precal
  • precal
|dw:1370530172377:dw|
phi
  • phi
if so multiply the bottom fraction by (b-1)/a do the same for the top fraction
precal
  • precal
|dw:1370530191718:dw|
phi
  • phi
the bottom fraction turns into 1
anonymous
  • anonymous
Ohh. Thanks everyone! I feel dumb now lol.
phi
  • phi
or remember: dividing is the same as multiplying by the inverse (see precal's post)
precal
  • precal
just remember your rules for dividing with fractions leave the first fraction alone change your division to multiplication flip the second fraction
anonymous
  • anonymous
Thanks!
precal
  • precal
anytime :)

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