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8.10 Equivalent fractions

Lesson

Are you ready?

Can you identify the number and size of equal parts?  

Here is a shape divided into parts, use it to answer the following questions.

  1. This shape has $\editable{}$ equal parts.

  2. If one part was shaded, that shaded part would be $\frac{\editable{}}{\editable{}}$ of the whole.

 

Learn

How can we identify equivalent fractions?  This video will show us.  

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Question 1

Fill in the blank to find an equivalent fraction to $\frac{1}{4}$14:

  1. $\frac{1}{4}=\frac{\editable{}}{8}$14=8

Learn

Here we look at comparing using equivalent fractions. 

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Question 2

We are going to compare the two fractions $\frac{1}{8}$18 and $\frac{1}{4}$14.

  1. Turn $\frac{1}{4}$14 into a fraction in eighths.

  2. We can now compare the two fractions $\frac{1}{8}$18 and $\frac{1}{4}$14.

    Which fraction is larger?

    $\frac{1}{8}$18

    A

    $\frac{1}{4}$14

    B

    The fractions are the same size.

    C

 

Outcomes

3.NF.A.3

Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.

3.NF.A.3b

B. Recognize and generate simple equivalent fractions. Explain why the fractions are equivalent.

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