## Tuesday, November 20, 2012

### Tina's Scribepost

Today we had to do page 227 in the textbook. I'm going to be doing numbers 1, 4, and 9. I will also be showing how I got the answer.

Question 1- Anna divided 5/6 by 1/2 and stated that the quotient is 5/12. A) What was Anna's mistake? Answer- Anna's mistake was that she didn't flip the second fraction, which is called a reciprocal. Like this:

B)What is the correct quotient? Use a diagram to show how you know.
Answer- First I'm going to estimate, then say what the question is asking in words, solve the answer, then use a diagram.

Now that I finished that, I know the answer, which makes it a bit easier to draw the diagram. I'm going to make the fractions with a common denominator. Like so-

Now onto Question 4.

A) Does 2 1/2 divided by 1 1/2 equal 1 1/2 divided by 2 1/2?
Answer- I believe that this question is asking if both of the questions have the same quotients or not. Which the answer is no, because the first question is 2 1/2 divided by 1 1/2, the answer is 1 2/3 (5/3), the second question is 1 1/2 divided by 2 1/2, the answer is 3/5, therefore the answer is no.

B) If the quotients in part A) are not equal, how are they related?
Answer- They are related in a way, because they have the same numbers, such as 2 1/2, 1 1/2, 1/2. They also in a way have the same answer, just flipped up and down. Like this-

Now my final question, I will answer, Question 9.
Divide.
A) 3/4 divided by 4/5.
Answer-15/16

B) 1 2/3 divided by 2 5/6
Answer- 9/17

C) 12 divided by 3/4
Answer- 16

Those are all my questions, I hope I helped you understand, even if it was just a little bit!
If you still don't understand what a reciprocal is then click on this site.
If you just don't understand dividing fractions, then click here.
If you don't understand how to draw dividing fractions then, take a look at this video.
.

My Test Corrections.
On my test my mistake was drawing a diagram for 1/4 divided by 1/3.
So here's my correction for that question.

#### 4 comments:

1. Cool lotta stuff good post awesome good vid gonna click on link now

2. Very good! A lot of pictures to make us understand it MUCH MUCH more, good explanations as well. But, next time, make the pictures bigger, but yeah nice job!

3. Good job Tina! Your pictures made me understand the unit that were doing in math much better! Your video also helped me too! Good job!

4. Excellent post, Tina! I like how you gave a very clear explanation! I also like your pictures. In my opinion, your pictures are fine as it is. I like how you gave us very helpful links. Good job.