Adding and Subtracting Fractions

This video tutorial from MooMoo Math and Science reviews how to add and subtract fractions. It covers finding a common denominator, rewriting fractions, and performing addition or subtraction. The video includes examples of adding and subtracting fractions, including mixed fractions, and introduces the ladder method for finding common denominators. The tutorial concludes with a summary of the steps and emphasizes the importance of simplifying results.

What is the first step in adding or subtracting fractions?

• Multiply the numerators

• Find a common denominator

• Simplify the fractions

• Add the whole numbers

When rewriting fractions, what must remain the same?

• The numerators

• The denominators

• The mixed numbers

• The whole numbers

In the example of adding 1/6 and 5/12, what is the common denominator?

• 24

• 6

• 18

• 12

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What is the result of adding 1/6 and 5/12?

• 1/3

• 11/12

• 7/12

• 1/2

What method is suggested for finding a common denominator if you have difficulty?

• Division method

• Cross-multiplication

• Ladder method

• Prime factorization

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In the example of subtracting 5/6 and 2/9, what is the common denominator?

• 36

• 24

• 18

• 12

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CCSS.7.NS.A.1C

What is the result of subtracting 5/6 from 2/9?

• 1/18

• 11/18

• 5/18

• 7/18

In the mixed fraction example, what is the common denominator for 2/3 and 1/2?

• 3

• 4

• 6

• 5

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What is the result of subtracting 3 1/2 from 8 2/3?

• 5 1/6

• 4 2/6

• 5 2/6

• 4 1/6

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CCSS.5.NF.A.1

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What is the final step in adding or subtracting fractions?

• Simplify the result

• Add the numerators

• Convert to improper fractions

• Multiply the fractions

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