Adding and Subtracting Fractions with Unlike Denominators

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What is a fraction?

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A fraction represents a part of a whole and consists of a numerator (top number) and a denominator (bottom number).

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What is a numerator?

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

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What is a denominator?

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

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How do you add fractions with unlike denominators?

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

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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 subtracted.

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What is the first step in subtracting fractions with unlike denominators?

Back

The first step is to find a common denominator for the fractions.

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