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put this solution on YOUR website!Ok let me give you a little tip on finding these. You know it is very difficult sometimes to find the lcd when you have big numbers and variables, or if you have several fractions you are trying to find a lcd for. so this is how I solve this problem , but check with your instructor to see if it is acceptable to her/him on paper, ok....
I will use your problem for an example. I don't know what operation you are preforming with the two numbers so I will just show you one by one how to get the lcd of the two.
1/ab^2 and a/5
multiply the opposite denomonators to each side
(5) 1/ab^2 and a/5 (ab^2)
you would get
5ab^2 as your common denomonator.
Another hint, if you are multiplying or dividing these 2 equations you could cancel out as in the following example and multiply the numerator by what was left to get your answer
If your question was
what is 1/ab^2 * a/5
you could solve this easier by doing the following, multiply both denomonators by the denomonators on each side, for example
1/ab^2
(5)(ab^2)1/ab^2 you would cancell out the ab^2 and have 5 to multiply by the 1 which would be 5 = the answer for first part.
a/5 is your second equation
the other side was a/5 (5)(ab^2) the 5 would cancell and you would multiply the numerator of 5 and the (ab^2) giving you 5ab^2
you would be left with 5*5ab^2 and that = 25ab^2
your problem didn't state that you needed to do that operation (or any other than finding the lcd, but this extra tip will help you in the future
If you need any assistance please let me know.
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