Find A:B, if (2A+4B)/(2A-4B) =3/2

I start with 2A+4B=3A-6B...

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- Jul 26th 2010, 06:04 AMsfspitfire23ratios
Find A:B, if (2A+4B)/(2A-4B) =3/2

I start with 2A+4B=3A-6B... - Jul 26th 2010, 06:07 AMBacteriusQuote:

Find A:B, if (2A+4B)/(2A-4B) =3/2

I start with 2A+4B=3A-6B...

(scratch what was there before)

You could just cross-multiply :

Then expand :

Simplify :

Simplify again :

Finally :

Does it make sense ? - Jul 26th 2010, 06:09 AMAlso sprach Zarathustra
2a+4b=3

&

2a-4b=2 - Jul 26th 2010, 06:35 AMArchie Meade
- Jul 26th 2010, 06:39 AMBacterius
Thanks Archie, for making me notice a typo in my post (fixed by the way). Enough math for me for today - too much mistakes.

Nice working also (Yes)