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Wednesday, November 14, 2012

Jalaire's Fraction Scribepost

Today in class we learned how to solve dividing fraction statements, how to model them, put them on a number line and 3 ways we can rewrite the fraction statements.

3 ways we can rewrite 6 ÷ 
1/2:


How to divide fractions:
You can solve dividing fraction statements in 3 ways too.


One way we can solve 6 ÷ 1/2 is making a number line. Each point is 1/2. Each hump has 1 interval. You make 12 humps to get to 6. So the answer to 6 ÷ 1/2 = 12.

The second way you can solve it is by making the second fraction a whole by multiplying it by a reciprocal which gives you a product of 1. Then take that fraction and multiply with the other fraction.

Reciprocals is a fraction that when multiplied by another fraction gives a product of 1.

How do you model 9 ÷ 1/3? You can model it by making 9 squares and splitting into thirds. After doing that you can count how many squares there are or you can multiply  9 by 3 which gives you 27.  
How do you solve 1/2 ÷  2/1?

You have to share 1/2 between 2 groups. You have a 1/2 and you need to half the half and get 1/4 as seen in the picture
Another way you can solve this is making the second fraction a reciprocal and taking 1/2 and multiply it by 1/2 and you'd get 1/4.

Here's a video about dividing fractions to help you understand it more!
Or you can go to this link to practice dividing fractions

My Test Corrections:

Question 6: In computer terminology, a bit is 1/8 of a byte. How many equal 16 bytes?

I got this question wrong because I multiplied 1/8 by 16 and I got the answer of 2. Instead I should've divided 1/8 by 16 to get the answer of 128 bits. 
Question 9, 10 11: Use a question, picture and math to solve the following questions.

In these three questions I lost a mark because I forgot to put a question for each. So, in total I lost one mark for each question. The questions that I should have put was:

Question 9: 5/6 x 1/2
What is 5/6 groups of 1/2?

Question 10: 1/4 ÷ 1/3

How many groups of 1/3 are in 1/4?

Question 11: 5/8 ÷ 1/4

How many groups of 1/4 are in 5/8?




6 comments:

  1. Great post, Jalaire! I like how you explained with words and pictures. I really understood it better. I like how you added a video and a link too. That game is pretty convenient for practicing. As always, excellent job!

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  2. I liked how you explained it with pictures and words. I also liked how you added a link and a video. I understand what it mean. Good job.

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  3. Good job Jalaire, I like how you explained it with pictures and words. I also liked the link and video.

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  4. Good Job Jalaire! It made more sense to me when you showed it with pictures and words! The video was great too! Good job

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  5. I like how you put a lot of details and explanations! Your post is very neat and easy to understand! I liked how you showed your work, and had words, a video, a link, and pictures! I also like how you made your pictures pop out! Good Job Jalaire!

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  6. Great work, Jalaire! I like how it's so detailed. You have words, pictures, and a video which completes the post. I can understand this more. Nice job!

    ReplyDelete