Subtracting Fractions with Unlike Denominators

Practice subtracting fractions with different denominators by finding common denominators and simplifying results.

Grade 5 Math FractionsAdding and Subtracting FractionsSubtracting Fractions with Unlike Denominators

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Includes

Fill in the Blanks2 Short AnswerCustomMultiple ChoiceTrue / False

Standards

CCSS.MATH.CONTENT.5.NF.A.1CCSS.MATH.CONTENT.5.NF.A.2

Topics

fractionssubtractionunlike denominatorsgrade 5math

8 sections · Free to use · Printable

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Subtracting Fractions with Unlike Denominators

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Read each question carefully and subtract the fractions. Remember to find a common denominator before subtracting and simplify your answer to its lowest terms.

1. To subtract fractions with unlike denominators, you must first find a .

2. After finding a common denominator, you only subtract the .

3. The last step in subtracting fractions is to the answer.

1. Subtract: 3/4 - 1/2

2. Subtract: 5/6 - 1/3

3. Subtract: 7/8 - 1/4

Use the fraction bars to help you subtract. Shade the first fraction, then cross out the portion representing the second fraction.

1. 1/2 - 1/4 =

2. 2/3 - 1/6 =

1. What is the difference between 4/5 and 3/10?

1/5

1/10

5/10

1/2

2. Which of the following is equivalent to 1 - 1/3?

1/2

2/3

3/3

1/3

1. You can subtract fractions with unlike denominators directly without finding a common denominator.

True

False

2. The least common multiple (LCM) of the denominators is usually the best common denominator to use.

True

False

1. Sarah had 7/10 of a pizza. She ate 1/5 of the whole pizza. How much pizza is left?

2. A recipe calls for 3/4 cup of flour. If you only have 1/8 cup, how much more flour do you need?