Adding Rational Numbers (Fractions with Same Denominators

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What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

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What does it mean to add fractions with the same denominator?

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When adding fractions with the same denominator, you keep the denominator the same and add the numerators.

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What is the formula for adding fractions with the same denominator?

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What is the result of adding a positive and a negative fraction with the same denominator?

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The result depends on the absolute values of the fractions; if the positive fraction is larger, the result is positive, and if the negative fraction is larger, the result is negative.

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What is the importance of the denominator in fraction addition?

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The denominator must be the same for the fractions to be added directly; it represents the total number of equal parts.