Add and Subtract 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 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 of the whole are being considered.

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What is the denominator in a fraction?

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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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How do you add fractions with unlike denominators?

Back

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

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How do you subtract fractions with unlike denominators?

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To subtract fractions with unlike denominators, find a common denominator, convert the fractions, and then subtract 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 adding or subtracting fractions?

Back

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

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