adding and subtracting fractions

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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 add fractions?

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Adding fractions involves combining two or more fractions to find a total. To add fractions with different denominators, 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 shared multiple of the denominators of two or more fractions, allowing them to be added or subtracted.

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How do you find a common denominator for \(\frac{2}{12}\) and \(\frac{2}{4}\)?

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The least common multiple of 12 and 4 is 12, so the common denominator is 12.

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What does it mean to subtract fractions?

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Subtracting fractions involves taking one fraction away from another. Like addition, you need a common denominator for fractions with different denominators.

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What is an improper fraction?

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An improper fraction is a fraction where the numerator is greater than or equal to the denominator.

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Convert the improper fraction \(\frac{23}{21}\) to a mixed number.

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