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the least common denominator of two fractions is 12. if you add the two denominators, their sum 7. what are the denominators?

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jangmookkChris
3 and 4

3 x 4 = 12
3 + 4 = 7
qquestions
The answer is 3&4. Beacuse the least common demomiantor of both of them is 12. And 3+4=7