Adding and Subtracting Fractions

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What is a fraction?

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What does it mean to add fractions?

Back

Adding fractions involves combining two or more fractions to find a total. If the denominators are the same, add the numerators. If they are different, find a common denominator first.

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What is a common denominator?

Back

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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The least common multiple (LCM) of 3 and 4 is 12. So, the common denominator is 12.

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Back

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What does it mean to subtract fractions?

Back

Subtracting fractions involves finding the difference between two fractions. If the denominators are the same, subtract the numerators. If they are different, find a common denominator first.

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Front

What is an improper fraction?

Back

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What is a mixed number?

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

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Divide the numerator by the denominator. The quotient is the whole number, and the remainder over the original denominator is the fraction.