• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Adding Fractions With Unlike Denominators
 

Adding Fractions With Unlike Denominators

on

  • 6,861 views

Learn how to add and subtract fractions with unlike denominators

Learn how to add and subtract fractions with unlike denominators

Statistics

Views

Total Views
6,861
Views on SlideShare
6,852
Embed Views
9

Actions

Likes
0
Downloads
53
Comments
0

2 Embeds 9

http://mrshallumsclass.blogspot.com 8
http://clayschools.blackboard.com 1

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Adding Fractions With Unlike Denominators Adding Fractions With Unlike Denominators Presentation Transcript

    • M5N4 g. Add and subtract common fractions and mixed numbers with unlike denominators.
      How to add and subtract fractions with unlike denominatorsCreated by: Sarah Hallum
    • Step 1
      Find the Least Common Multiple for the two denominators.
      Definitions:
      Denominator-bottom number in fraction
      Multiple-the answer to a multiplication problem between two whole numbers. Ex. 5-5, 10, 15, 20
      Least Common Multiple-the first multiple two numbers have in common. Ex. 5-5, 10, 15, 20, 25
      4-4, 8, 12, 16, 20, 24
      LCM is 20.
    • Step 1
      Find the Least Common Multiple for the two denominators.
      1
      2
      1
      3
      LCM=6
      2-2, 4, 6, 8, 10
      3-3, 6, 9, 12, 15
    • Step 2
      Make equivalent fractions that have the LCM as the denominator.
      Definitions:
      Equivalent Fraction-A fraction that is the same value as another fraction but different pieces
      Example:
      1 2
      2 4
    • Step 2
      Make equivalent fractions that have the LCM as the denominator.
      LCM=6
      1
      2
      1
      3
      1
      3
      2
      2
      2
      6
    • Step 2
      Make equivalent fractions that have the LCM as the denominator.
      LCM=6
      1
      2
      1
      3
      1
      3
      3
      3
      2
      6
    • Step 3
      Add or subtract the new, equivalent fractions together.
      3
      6
      2
      6
      5
      6
    • Step 4
      Simplify your answer.
      Definitions:
      Simplify-make your fraction as simple as possible
      6
      9
      3
      3
      2
      3
    • Step 4
      Simplify your answer.
      5
      6
      1
      1
      5
      6
      5=1, 5
      6=1, 2, 3, 6
    • Answer
      1
      2
      1
      3
      5
      6
    • Let’s Practice
      2/3 + 2/7
      ½ +2/9
      1/5 + ¾
      1/3 + ¼
      2/4 + ½
      Check your answers on the next page.
    • Answer Key
      2/3 + 2/7 = 20/21
      ½ +2/9 = 13/18
      1/5 + ¾ = 19/20
      1/3 + ¼ = 7/12
      2/4 + ½ = 4/4, 1
    • Final Note
      If you would like more practice, then click on the image below.