You can
put this solution on YOUR website!Hi,
This is actually a really easy fractions problem, hidden behind some horrible looking algebra. All you have to do is remember how to add fractions. Let's try a simple example:
We need to work out a common denominator for ecah of the fractions. A common denomitator, is just a common multiple of 5 and 7. The most obvious choice is 35. Now we rewite the fractions:
and
Now we add them giving
Doing the same thing with your problem we have
Taking
as the common denominator, we rewrite the problem as
But notice that
which is just
Using this, and adding the fractions, we get
I'm sure you can tidy that up to get an answer of
At university level you would be expected to either show the fraction is in it's lowest form, or cancel it to it's lowest form. But factoring cubics is probably too hard for schoolwork, so I'll just tell you that this is as simplified as it gets.
Hope that helps
Kev
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