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 necessary to find a common denominator to add or subtract them.

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How do you find a common denominator for fractions?

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To find a common denominator, identify the least common multiple (LCM) of the denominators.

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

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

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How do you convert fractions to have a common denominator?

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Multiply the numerator and denominator of each fraction by the necessary factor to make the denominators equal.

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What is the process for adding fractions?

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1. Find a common denominator. 2. Convert each fraction. 3. Add the numerators. 4. Keep the common denominator.

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What is the process for subtracting fractions?

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1. Find a common denominator. 2. Convert each fraction. 3. Subtract the numerators. 4. Keep the common denominator.

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