Adding Fractions with Unlike Denominators

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What is a fraction?

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What does it mean to have unlike denominators?

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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 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. It allows you to add or subtract fractions easily.

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The first step is to find a common denominator. The least common multiple (LCM) of 2 and 8 is 8.

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What is the formula for finding the sum of two fractions?

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