SOLUTION: Add or subtract as indicated. Be sure to simply completely. 2/5w+10 minus 3/2w-4 I do not know how to get the denominators to become the same. I am begging someone for help,

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Question 64937: Add or subtract as indicated. Be sure to simply completely.
2/5w+10 minus 3/2w-4
I do not know how to get the denominators to become the same. I am begging someone for help, please!

Answer by 303795(602)   (Show Source): You can put this solution on YOUR website!
If you had to do the problem 1/2 - 1/3 you would need to find a common denominator. The easiest way is to do 2 x 3 = 6. This approach doesn't guarantee the Lowest common denominator but it always gives a common denominator.
In this example

Factorise the bottom numbers as much as possible.

A common denominator is found by multiplying 5 x (w+2) x 2 x (w-2)







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