Comparing Fractions G3

Comparing Fractions G3

By Erika Larson

Methods to compare fractions

• Benchmark

• Number lines

• Fraction models

• Butterfly (cross multiplication)

Comparing Fractions

Using benchmark

Compare fractions with same denominator.

If the denominators are the same, use the numerators to compare. The bigger numerators means the fraction is greater.

Multiple Choice

Compare 7/10 and 4/10

• 7/10 < 4/10

• 7/10 > 4/10

• 7/10 = 4/10

Multiple Choice

Compare 2/6 and 5/6

• 2/6 < 5/6

• 2/6 > 5/6

• 2/6 = 5/6

Compare fractions with same numerators.

If the numerators are the same, use the denominators to compare. The bigger denominators means the fraction is less.

Multiple Choice

Compare 2/8 and 2/10.

• 2/8 > 2/10

• 2/8 < 2/10

• 2/8 = 2/10

Multiple Choice

Compare 6/9 and 6/4.

• 6/9 > 6/4

• 6/9 < 6/4

• 6/9 = 6/4

Use 1/2 as a Benchmark

A benchmark is a known size or amount that helps you understand a different size or amount. Is the fraction less than or great than 1/2?

Use 1/2 as a Benchmark

Is the fraction 1/4 greater than or less than 1/2?

Use 1/2 as a Benchmark

• Is the fraction 1/4 greater than, less than, or equal to 1/2?

• 1/2 will be in the middle of 0 and 1.

• Is 1/4 closer to 0 or 1.

Multiple Choice

Is the fraction 10/12 less than, greater than, or equal to 1/2?

• 10/12 < 1/2

• 10/12 > 1/2

• 10/12 = 1/2

Multiple Choice

Is the fraction 6/12 less than, greater than, or equal to 1/2?

• 6/12 < 1/2

• 6/12 > 1/2

• 6/12 = 1/2

Compare Fractions using models

Multiple Choice

Which fraction is greater?

• 2/3

• 6/12

• they are equal

Multiple Choice

Compare fractions 2/8 and 1/4 using the model.

• 2/8 < 1/4

• 2/8 > 1/4

• 2/8 = 1/4

Multiple Choice

Compare fractions 2/4 and 2/6 using the model.

• 2/4 > 2/6

• 2/4 < 2/6

• 2/4 = 2/6

Multiple Choice

Compare the fraction.

• 2/4 = 3/4

• 2/4 > 3/4

• 2/4 < 3/4

Multiple Choice

Compare the fractions.

• 2/3 = 3/4

• 2/3 > 3/4

• 2/3 < 3/4

Multiple Choice

Compare the fractions.

• 4/5 = 3/10

• 4/5 > 3/10

• 4/5 < 3/10

Multiple Choice

Compare the fractions.

• 2/6 = 1/2

• 2/6 > 1/2

• 2/6 < 1/2

Comparing fractions using the "butterfly method"

Use the butterfly method and compare the products.

Multiple Choice

Compare the fractions using butterfly method.

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Multiple Choice

Compare the fractions using butterfly method.

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Multiple Choice

Compare the fractions using butterfly method.

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Multiple Choice

Compare the fractions using butterfly method.

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Multiple Choice

Compare the fractions using butterfly method.

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