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For adding or subtracting fractions, any common denominator will do. Explain the advantages and disadvantages of using the LCM of the denominators.
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For adding or subtracting fractions, any common denominator will do. Explain the advantages and disadvantages of using the LCM of the denominators.

User Noelbk
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1 Answer

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Using the lowest common multiple helps because then afterwards there is no need to divide because it’s already the lowest (I believe I was taught this a while ago).
User Stepheaw
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