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 does it mean to have unlike denominators?

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Unlike denominators are when the denominators of two or more fractions are different, making it impossible to add or subtract them directly.

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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 to an equivalent fraction with that denominator, and then add the numerators.

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

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

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What is a common denominator?

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

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How do you find the least common denominator (LCD)?

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The least common denominator (LCD) is the smallest multiple that two or more denominators share.

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