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 the parts represented by the fractions. If the denominators are the same, add the numerators. If they are different, find a common denominator first.

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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, if the denominators are the same, subtract 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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Back

The least common multiple (LCM) of 4 and 6 is 12. So, the common denominator is 12.

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True or False: You need a common denominator to add fractions.

Back

True.

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True or False: You need a common denominator to multiply fractions.

Back

False.