NF.1 Adding Fractions with Unlike Denominators

Front

What is a fraction?

Back

Front

What does it mean to have like denominators?

Back

Like denominators are when two or more fractions have the same denominator, making it easier to add or subtract them.

Front

What does it mean to have unlike denominators?

Back

Unlike denominators are when two or more fractions have different denominators, requiring a common denominator to add or subtract them.

Front

How do you find a common denominator for two fractions?

Back

To find a common denominator, identify the least common multiple (LCM) of the denominators.

Front

What is the process to add fractions with unlike denominators?

Back

1. Find a common denominator. 2. Convert each fraction to an equivalent fraction with the common denominator. 3. Add the numerators and keep the common denominator.

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Back

Front

What is the sum of mixed numbers 2 5/10 and 1 1/2?

Back

Convert to improper fractions, find a common denominator, add, and convert back to a mixed number. The answer is 4.

Front

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

Back

Multiply the whole number by the denominator, add the numerator, and place that over the original denominator.

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Back

Front

What is a common denominator for the fractions 2/4 and 3/8?

Back

Common denominators include 8, 16, 24, etc. 12 is NOT a common denominator.