math lesson equivalent fractions

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How do you find an equivalent fraction?

Example:

In this lesson you will learn how to find equivalent

fractions by using the identity principle.

Thinking that fractions are equivalent because they have the same numerator.

A common mistake is…

35

38

Let’s Review

Fractions that look different can be equivalent (have the same value)

12

48

The Identity Principle If you multiply or divide any number by 1,

you get the same number.

3 x 1 = 3

3 _ 1 = 3

This also works for fractions.

x 1 = _ 1 =

1 can also be a fraction. When the numerator and denominator are the same, the fraction equals 1.

22 = 1

1616

= 144

= 1

What if we multiplied or divided a fraction by a fraction that equaled one?

x = _ =918

12

Example:

x =

_ =

In this lesson you learned how to find equivalent fractions by using the identity principle.

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