Adding Fractions

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What is a fraction?

Back

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What is the numerator in a fraction?

Back

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

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What is the denominator in a fraction?

Back

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

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How do you add fractions with the same denominator?

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How do you add fractions with different denominators?

Back

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

Front

What is a common denominator?

Back

A common denominator is a shared multiple of the denominators of two or more fractions that allows them to be added or subtracted.

Front

Can you add fractions with unlike denominators directly?

Back

No, you cannot add fractions with unlike denominators directly; you must first convert them to have a common denominator.

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Front

What do you need to add and subtract fractions?

Back

You need common denominators to add and subtract fractions.