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anbunbun
What is the sum
(1/(2b)) + (b/2) These need to have a least common denominator, in other words the denominators have to be made equal. Note in the (b/2) part that if you multiply the 2 by b, then the denominators will be equal. But you have to also multiply the numerator of (b/2) by b so that the change in the numerator reflects that change in the denominator: = (1/(2b)) + (b*b/(2b)) = (1 + b^2) / (2b) = (b^2 + 1) / (2b) FINAL ANSWER b^2+1/2b