Adding Fractions

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What is a common denominator?

Back

A common denominator is a number that can be used as a denominator for two or more fractions, allowing them to be added or compared.

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What is the denominator in a fraction?

Back

The denominator is the number on the bottom of a fraction that indicates how many equal parts the whole is divided into.

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The least common multiple of 5 and 6 is 30, so 30 is a common denominator.

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numerator and denominator are different.

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What is the numerator in a fraction?

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The numerator is the number on the top of a fraction that indicates how many parts are being considered.

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How do you add fractions with different denominators?

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To add fractions with different denominators, first find a common denominator, convert the fractions, and then add the numerators.

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What is an improper fraction?

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An improper fraction is a fraction where the numerator is greater than or equal to the denominator.