Introducing
Prezi AI.
Your new presentation assistant.
Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.
Trending searches
Loading…
Adding Mixed Numbers
4
Transcript
Adding Mixed Numbers
Unit 8, Lesson 9
Consider this...
How do we add
How do you solve two fractions with different denominators?
+
3
6
4
6
2
3
1
2
is the same as
1
2
3
1
2
+
=
Our problem uses the whole numbers 1 and 1 and the fractions 1/2 and 2/3.
- First, we need to find a common denominator.
- Then we need to find equivalent fractions that share the common denominator.
- Then we can add the fractions!
Let's deal with the fractions first because we've been doing that in this unit.
1
r 1 out of 6
This is an improper fraction. Let fix that!
6
7
-6
1
4
6
3
6
7
6
+
=
1
=
1
6
Rosie used 1 1/2 cups of whole-wheat flour and 1 2/3 cup of buckwheat flour in a recipe. How much flour did she use in all?
Our problem uses the whole numbers 1 and 1 and the fractions 1/2 and 2/3.
Watch this video that shows how to use an area model to add mixed number with unlike denominators.
Try showing me the problem using manipulatives.
1
We know our fractions add up to 1
6
So, now let's deal with the whole numbers.
+
1 + 1 = 2
When I add the sum of the fractions with the sum of the whole numbers I'll have my answer!
* Hint- You'll still need to find equivalent fractions to add 1/2 and 2/3.
3
2 + 1 =
1
6
Solve in any way you choose but show your work.
OBJECTIVE
Students will use models and computational procedures to add mixed numbers.
Let's walk through another problem together!
http://studyjams.scholastic.com/studyjams/jams/math/fractions/add-sub-mixed-numbers.htm
Choose a template
Presentations from around the world
Learn more about creating dynamic, engaging presentations with Prezi