Wednesday, March 10, 2010

Subtracting with mixed numbers

If you have unlike denominators :
2 3/4 - 1 1/4
One method use fraction strips
* Second method = Subtract whole numbers
Answer the following :

a) 2 2/3 - 1 1/3 =
2 - 1 = 1
2/3 - 1/3 = 1/3

1 1/3

b) 3 7/8 - 1 3/8 =
3 - 1 = 2

7/8 - 3/8 = 4/8
2 4/8

Lowest terms = 2 2/4, 2 1/2

c) 4 3/4 - 1/4 =

3/4 - 1/4= 2/4
4 2/4
Lowest terms - 4 1/2


Unlike Denominators
- Find the common denominator
We don't want to have a whole number (2) and a negative fraction so we must regroup





* ANOTHER WAY TO REGROUP





Steps :
1. Subtract the whole numbers
2. Subtract fractions
3. Combine them



Answer the following ; a ) 4 1/4 - 3 2/5



b) 4 1/4 - 7/8



21 comments:

  1. Excellent Job Allison! I like your scribepost it is really neat and clear to read but you should space things out a bit more. Next time try to remember to put a link and a video to help us out more. I really liked your pictures they are very nice and neat! Great Job on not using to much color. Overall Excellent Job ! (:

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  2. Great Job Allison! I like how you made the font size nice and big to see. Your images were also very well done! I think you got pretty much all the notes we did today! Next time you should try and add a link and/or video, but other than that, you did a very good job! :)

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  3. Good Job Allison. Your scribe is really organized. I liked how you used different colours for the important words. At first I didn't get what Mr. Isfeld wrote on the overhead but when I read yours I understood it. Your scribe could be improved by adding a link and a video to explain more about Subtracting mixed numbers. I really liked your pictures. :)
    Anyways good job!

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  4. Good job Allison, this was a very organized scribe. I liked your use of colours and your picture were really neat. I think you got every notes we needed for today. Next time try to add a link and or a website it could've been better with those but really great job, keep it up. (:

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  5. Goodjoob Allison ! This was a very nice scribe . I also like how you made the font verry BIG .

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  6. Awesome job Allison! Your scribe was really nice. I like the images that you put and how you made the font big. Next time, remember to put a video and a link to make your post better.

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  7. Amazing job Allison! You did a great job with this post! I think you did a really good job with the pictures and I like how you used colours as well as a big font. I also think everything is neat tidy but next time I think you should add a video and maybe a link to help people who don't understand and to make it a better post.

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  8. great job allison im surprised you got every thing anyways good job and nice color and pictures :)

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  9. I know that was probably the hardest but you have tried the blog before so that it is a little bit easy to do for you Alison and by the way you did a great job with the diagrams by putting the into those boxes and one more thing is you used the colors very nicer

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  10. Very Good Allison!!! This scribe was very hard to do, but you did it. I like the way you made the words and letters pop up. Also I like you almost got everything on it and the boxes with information in it. Great Job.

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  11. Good Job Allison. you had a long blog to do. and you pulled it off. i liked how you posted pictures and made it really easy to read. good job.

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  12. Good Job Allison. I really like the pictures and the different colours you used. Next time put a video or a link. Overall good job!

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  13. Good job Allison! I liked your images, because they were clear. Thankss for making it organized and neat. I understood it good.

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  14. Good job Allison! I know that it was a little hard to copy everything down before but you made it easier to understand. The images a good and clear, the colours are very interesting and everything was alot more organized than my notes. Awsome job!!!

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  15. Good job Allison. The pictures are really good and it is really neat and organized.

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  16. Whoa!Outstanding scribe post Allison!You really put alot of effort on that!The pictures were great help and so was the steps!The only thing that was missing was the video and a link though but everything was organized and well thought out!All you need to do now is relax from all that typing and searching!Keep up the good work!

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  17. Great Job Allison! I like how you made the font size nice and big to see. Your images were also very well done! I think you got pretty much all the notes we did today! Next time you should try and add a link and/or video, but other than that, you did a very good job!

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  18. Great, great post! I liked the pictures and the colors. A video might've helped a little but I think that this post was really helpful by itself, and helped me too!
    Check out my post at: http://aisz70910.blogspot.com/2010/03/cigarettes-pulleys-and-zippers.html

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  19. Great job Allison! I really like your post and that it was very organized and neat! Keep up the great work!

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  20. great job!! everything is well organized and neat!

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  21. -Late Comment-
    GREAT JOB ALLISON! This post was very nice and neat. :)
    But, I think you should have put a link/video. Overall, great job. Keep up the good work! :D

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