FIND THE COMMON DENOMINATOR

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What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions, allowing them to be added or compared.

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How do you find the least common denominator (LCD) of two fractions?

Back

To find the least common denominator, list the multiples of each denominator and identify the smallest multiple that appears in both lists.

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45

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CCSS.5.NF.A.1

CCSS.5.NF.A.2

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Back

36

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88

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40

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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14

Front

Why is it important to find a common denominator when adding fractions?

Back

Finding a common denominator is important because it allows fractions to be combined into a single fraction, making calculations easier.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the least common multiple (LCM)?

Back

The least common multiple is the smallest multiple that two or more numbers share.

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How can prime factorization help in finding the common denominator?

Back

Prime factorization breaks down numbers into their prime factors, making it easier to identify the least common multiple.