Questions on Algebra: Negative and Fractional exponents answered by real tutors!

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Question 14000:
Answer by LilSkittleMd(119) About Me  (Show Source):
You can put this solution on YOUR website!
1/2+3/15
first find a common denominator, in this case it is 30
multiply both the top and the bottom of the fraction by the number that will cause the bottom number to be 30
(1/2)15+(3/15)2
15/30+6/30
add the two fractions
21/30
simplify
7/10