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vihmir825

Answer:

Calvin should choose 12 as a common denominator for adding, because if 6 is the denominator it will be a mixed number or improper fraction.

dylany24

Answer:

You really would not know. Common denominator is used to add fractions, and without the equation, you would not know whether 6 or 12 would be a better help. The equation determines whether 6 or 12 would be a better choice.

Hope it helps

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