math lesson equivalent fractions
-
Upload
eric-westendorf -
Category
Education
-
view
592 -
download
2
description
Transcript of math lesson equivalent fractions
![Page 1: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/1.jpg)
How do you find an equivalent fraction?
Example:
![Page 2: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/2.jpg)
In this lesson you will learn how to find equivalent
fractions by using the identity principle.
![Page 3: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/3.jpg)
Thinking that fractions are equivalent because they have the same numerator.
A common mistake is…
35
38
![Page 4: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/4.jpg)
Let’s Review
Fractions that look different can be equivalent (have the same value)
12
48
![Page 5: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/5.jpg)
The Identity Principle If you multiply or divide any number by 1,
you get the same number.
3 x 1 = 3
3 _ 1 = 3
![Page 6: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/6.jpg)
This also works for fractions.
x 1 = _ 1 =
![Page 7: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/7.jpg)
1 can also be a fraction. When the numerator and denominator are the same, the fraction equals 1.
22 = 1
1616
= 144
= 1
![Page 8: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/8.jpg)
What if we multiplied or divided a fraction by a fraction that equaled one?
x = _ =918
12
![Page 9: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/9.jpg)
Example:
![Page 10: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/10.jpg)
x =
![Page 11: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/11.jpg)
_ =
![Page 12: math lesson equivalent fractions](https://reader036.fdocuments.net/reader036/viewer/2022081413/54787afbb4af9fa6478b4bf9/html5/thumbnails/12.jpg)
In this lesson you learned how to find equivalent fractions by using the identity principle.