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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Back

40

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40

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Back

36

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What is the least common multiple (LCM)?

Back

The least common multiple (LCM) is the smallest multiple that is exactly divisible by two or more numbers.

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How do you find the LCM of 5 and 8?

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The LCM of 5 and 8 is 40.

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How do you find the LCM of 4 and 10?

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The LCM of 4 and 10 is 20.

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How do you find the LCM of 9 and 12?

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The LCM of 9 and 12 is 36.

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What is the first step in finding a common denominator?

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Identify the denominators of the fractions you are working with.

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Why is it important to find a common denominator?

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Finding a common denominator allows you to add, subtract, or compare fractions accurately.