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). For example, in the fraction 1/2, 1 is the numerator and 2 is the denominator.

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What does it mean to find a common denominator?

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Finding a common denominator means identifying a number that can be used as the denominator for two or more fractions, allowing them to be added or subtracted. For example, for 1/4 and 1/2, the common denominator is 4.

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How do you add fractions with different denominators?

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To add fractions with different 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 the least common denominator (LCD)?

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The least common denominator (LCD) is the smallest multiple that two or more denominators share. It is used to simplify the process of adding or subtracting fractions.

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The first step is to find a common denominator.

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How do you find the difference between two fractions?

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To find the difference between two fractions, ensure they have a common denominator, then subtract the numerators while keeping the common denominator.

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