Adding & Subtracting Fractions w/ 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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Can you add fractions with unlike denominators directly?

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No, you cannot add fractions with unlike denominators directly. You must first find a common denominator.

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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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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 subtract fractions with unlike denominators?

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

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