- 70 Views
- Uploaded on
- Presentation posted in: General

Add and subtract fractions…

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Add and subtract fractions…

Addition and Subtraction of Fractions

To addfractions with the same denominator, we simply add the numerators.

3/10+5/10=8/10

To add fractions with different denominators we first make equivalent fractions until we have common denominators. Then add the numerators!

1/2+4/5=13/10=

1/2=5/10

4/5=8/10

5/10+8/10=13/10=1_3/10

To subtract fractions

To subtract fractions with common denominators we simply subtract the numerators. If they have different denominators we need to find an equivalent fraction first.

6/5-3/5=3/5

11/12-1/6=

1/6=2/12

11/12-2/12=9/12=3/4

- Make equivalent fractions with common demominators
- Add or subtract the whole numbers and numerators (leave the denominators alone!!!)

Examine the picture and explain what you think is happening and (if you can- why it works!)