NF.1 Adding Fractions with Unlike Denominators

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What is a fraction?

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A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (the number of parts) and 'b' is the denominator (the total number of equal parts).

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What does it mean to have unlike denominators?

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Unlike denominators are denominators that are not the same. For example, in the fractions 1/4 and 1/3, the denominators 4 and 3 are unlike.

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How do you find a common denominator for two fractions?

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To find a common denominator, identify the least common multiple (LCM) of the denominators. For example, for 2/3 and 3/4, the LCM of 3 and 4 is 12.

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What is the first step in adding fractions with unlike denominators?

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The first step is to find a common denominator for the fractions.

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How do you convert fractions to have a common denominator?

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Multiply the numerator and denominator of each fraction by the necessary factor to make the denominators equal.

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What is the process for adding mixed numbers?

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First, add the whole numbers together, then add the fractions. If the fraction sum is improper, convert it to a mixed number.

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Front

What is a proper fraction?

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