Addition and Subtraction of Fractions and Mixed Numbers

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What is a fraction?

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What is a mixed number?

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How do you add fractions with the same denominator?

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How do you add fractions with different denominators?

Back

To add fractions with different denominators, find a common denominator, convert the fractions, and then add the numerators.

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What is the process to subtract fractions?

Back

To subtract fractions, if they have the same denominator, subtract the numerators and keep the denominator. If they have different denominators, find a common denominator first.

Front

What is the first step in subtracting mixed numbers?

Back

Convert the mixed numbers to improper fractions before performing the subtraction.

Front

How do you convert a mixed number to an improper fraction?

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What is the least common denominator (LCD)?

Back

The least common denominator is the smallest multiple that two or more denominators share, used to add or subtract fractions.

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