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Earn +20 ptsQ: When is a common denominator needed and when is one not needed?
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What is the least common denominator for 49 over 64?
At least one other fraction is needed to determine a common denominator.
Do you need a common denominator for dividing fractions?
No only when adding or subtracting fractions a common denominator is needed
What is a common denominator for 5 eighths?
At least two fractions are needed in order to determine a common denominator.
What is the least common denominator of 180 over 168?
At least two fractions are needed to determine a least common denominator.
What is the common denominator of 8 and 10?
A common denominator, though not the least, is 80.
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