Adding and Subtracting Fractions with like and 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 for fractions to have like denominators?

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Fractions have like denominators when they share the same bottom number, making it easier to add or subtract them.

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What does it mean for fractions to have unlike denominators?

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Fractions have unlike denominators when they have different bottom numbers, requiring a common denominator to add or subtract them.

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How do you add fractions with like denominators?

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To add fractions with like denominators, keep the denominator the same and add the numerators.

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How do you subtract fractions with like denominators?

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To subtract fractions with like denominators, keep the denominator the same and subtract the numerators.

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What is a common denominator?

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A common denominator is a shared multiple of the denominators of two or more fractions, allowing for addition or subtraction.

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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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Yes, they are equivalent.

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