Homework Help: math very urgent

Posted by Anonymous on Monday, December 10, 2012 at 10:11pm.

First, do you get the same sum when you use 18 rather than 9 as a common denominator for 2/3 and 4/9? Explain the answer.

Also what extra step will you have to perform if you do not use the least common denominator when adding fractions?
Please explain the answer.

math very urgent - Mac, Monday, December 10, 2012 at 10:24pm
You will get the same answer
The extra would be putting your answer in lowest terms

6/9 + 4/9 = 10/9

12/18 + 8/18= 20/18 = 10/9

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