Showing posts with label growingpost. Show all posts
Showing posts with label growingpost. Show all posts

Monday, April 12, 2010

Darlene's Fraction Growing Post

Part 1

A) Video

B) Textbook Pg 202, Question 6

Fraction: 3x3/8
C) Textbook Pg 208, Question 4

Fraction: 1/4/2
D) Textbook Pg 208, Question 7

A pitcher of orange juice is 2/3 full. If 4 students equally share the juice, what fraction of the full pitcher does each student get?
Part 2

E) Fraction x Fraction

Fraction: 2/3 x 5/6
F) Fraction x Mixed Number

Fraction: 1 1/5 x 2/5

Turn the mixed fraction into an improper fraction by multiplying the whole number and the denominator, then add the numerator. Use that as a new numerator and use the same denominator from the mixed number. Then you multiply the numerators and denominators to get the answer.
G) Mixed Number x Mixed Number

Fraction: 2 3/4 x 2 3/4

Turn both mixed numbers into an improper fraction by multiplying the whole number and the denominator, then add the numerator. Use that as a new numerator and use the same denominator from the mixed number. Then you multiply the numerators and denominators, and convert the improper answer back to a mixed number.

The pictures are dark because the lights were off in my room and I was too lazy to turn the lights on. Sorry ^_^

Part 3

Division

Fraction: 1 1/2 / 3/4

Turn the mixed fraction into an improper fraction by multiplying the denominator and the whole number together and then add the numerator. Use the answer as a new numerator and use the old denominator. Replace the mixed fraction with the improper fraction and start the division. For the first way, you can cross multiply by multiplying the numerator of one fraction together with the other denominator from the other fraction and you do the same with the other denominator and numerator. Then you can just simplify the answer into lowest terms.
Fraction: 3/4 / 1/2

Monday, April 5, 2010

april's fraction growing post

PART 1:

a)


b) Multiplying Fractions

c) Dividing Fractions


d) World Problem


Each student gets 2/12 or 1/6 of the full pitcher of orange juice.
PART 2:


PART 3:

Sunday, April 4, 2010

Celdrick's Fraction Growing Post

A)










B)Question 6 letter a
a)

or another way to solve it is:
4/1 x 1/2= 4/2 or 2







C)Question 5 letter a
3/5 ÷ 2=












D)7.A pitcher of orange juice is 2/3 full. If four students equally share the juice, what fraction of the full pitcher does each student get?














----------------------------------------------------------------------------------------

PART 2
Fraction x Fraction














How I solved it:
Multiply 1 by 2 and you will get 2 (numerator)
Multiply 5 by 7 and it's 35 (denominator)
the answer is 2/35 (try to convert it as small as possible)





Mixed Number x Fraction














How I got the answer:
Step 1: Multiply the whole number by 6 and it equals 6..... Then add the 5 to the 6 and you will get 11...
so its 11/6

Step 2:
Multiply 11/6 with 3/10 and you will get 33/60.

Step 3: Simplify it....
divide it by 3
The answer would be 11/20





Mixed Number x Mixed Number











How I got it:


Step 1: Multiply 5 by 12 and then add 2 so you will get 62/12
Step 2: Multiply 4 by 23 and add 6 and you will get 92/23
Step 3: multiply 62/12 by 92/23 and you will get 5704/276
Step 4: Then divide it.... 276 will go to 5704 20 times and there will be 184 remaining. So its (20) 184/276
Step 5: Simplify
I simplified it by 4 and i got (20) 46/69

So the answer is (20) 46/69



COMMENT!!!!

Elaine's Fraction Growing Post

My Fraction Growing Post


Part 1


a) My Fractio
n Video



b) Multiplying Fractions

From the text book, I will use question 6 a) to explain how you can multiply fractions.

There are many ways to show what the product of 4 x 1/2 is. But the equation is basically telling you to add up 1/2, 4 times. Here is one way:













Another way to show multiplication is using a number line :













One last way is to multiply the numerators and the denominators:













c) Dividing Fractions

I used question 5 a) from the text book to help me explain how to divide fractions.

One way you can show you divided a fraction is by u
sing a fraction strip. First you show your fraction on the strip and then you divide the strip by the divisor:
















Another way you can divide a fraction is by multiplying the denominator of the fraction by the divisor:













d) Word Problems

Here, I'll show you how to solve a word problem using a question from the text book.

7. A pitcher of orange juice is 2/3 full. If four students equally share the juice, what fraction of the full pitcher does each student get?

To solve word problems, you have to find what it is asking. For example, in this question it is asking you to divide the pitcher of orange juice between 4 students. Then you set up a simple sentence answer. Next, you solve the problem. Lastly, you fill in the sentence.




















Part 2


1) Fraction x Fraction

When you multiply a proper fraction by another proper fraction, you follow two steps. First, multiply the numerators my each other and then the denomi
nators. The second step you do after multiplying, is that you put the fraction in lowest terms if it is not already.






















2) Mixed Number x Fraction

To find the product of a mixed number and a fraction, you have to follow a few steps. The first step is to convert the mixed number into an improper fraction by multiplying the whole by the denominator and the adding the numerator. After you get the improper fraction, you multiply the numerators and denominators. If your answer is an improper fraction, you convert it back to a mixed number by dividing the numerator by the denominator then put in it lowest terms. But if your answer is a proper fraction, you just convert it to lowest terms.
























3) Mixed Number x Mixed Number

The steps to find the answer of a multiplication question using mixed numbers is that first, you have to turn the mixed numbers into improper fractions. Then, you multiply the numerators and denominators. After that, you turn that improper fraction back into a mixed number. Finally, you put it into lowest terms.
























Part 3

In today's class, we learned how to divide fractions. We came up with three different ways to find them. But for me, I'm more comfortable with using only two of the ways so those will be the two I will explain.

a) Dividing Proper Fractions

When you divide a proper fraction, one way you can do it is by using cross multiplication. You get the denominator by multiplying the denominator of the dividend and the numerator of the divisor. To get the numerator, you multiply the numerator of the dividend by the denominator of the divisor. If it is an improper fraction, convert it into a mixed fraction then put it into lowest terms.





















The second way to get the answer is by finding a common denominator. When you get the common denominators. The numerator of the dividend it the numerator of the quotient and numerator of the divisor is the denominator for the quotient. And again if it is an improper fraction, turn it into a mixed number then convert it into lowest terms.
























b) Dividing a Mixed Number and a Proper Fraction
Here, I'll explain two ways to find the quotient of a mixed number and a proper fraction.

The first way you can find the quotient is by cross multiplying. First, you convert the mixed number into a improper fraction. Then you multiply the numerator of the dividend the denominator of the divisor to the numerator of the quotient. Next, you multiply the denominator of the dividend and the numerator of the divisor to get the denominator of the quotient. After that, if it's an improper fraction convert it into a mixed number. Lastly, put it into lowest terms.





















The second way you can find the answer is by using a common factor. The first thing you do is to convert any mixed numbers into an improper fraction. Next, you find a common factor. After you convert the fractions so they have a common factor, you will easily find the quotient. The numerator of the quotient is the same as the numerator of the dividend and the denominator of the quotient is the same as the numerator of the divisor. After that, you turn the improper fraction into a mixed number. Lastly, you put it into lowest terms.


Saturday, April 3, 2010

Jamie's Fraction Growing Post

Part 1
In math, we were taught how to divide and multiply fractions with whole numbers.

This is my fraction quiz, and it will show you how I answered all the questions.


I will show you two ways to multiply a fraction with a whole number.

ex. 5 x 2/3

One way you can solve it, is by using pictures.
The second way to solve it, was by multiplying the whole number by the numerator of the fraction.
Now, I will show you how to divide a fraction by a whole number.

ex. 1/5 ÷ 2

To divide a fraction by a whole number, you have to draw the fraction first. You divide the whole into 5 parts, since the fraction is 1/5 as shown on the left in the picture. Then, to divide it by a whole number, you have to put a horizontal line across to show that you're dividing the fraction into 2.
Finally, I had to pick a word problem and show you how to solve it.

A pitcher of orange juice is 2/3 full. If four students equally share the juice, what fraction of the full pitcher does each student get?

To solve this problem, we have to divide a whole into thirds, and colour in 2 parts. Now, since the orange juice is equally shared with four people, you have to divide the 2/3 into 4 with horizontal lines, as showed in the picture.
Simple sentence answer: Each student gets 2/12 or 1/6 of the orange juice.

Part 2 - Multiplying

This part of the fraction growing post is about multiplying fractions with mixed numbers, and improper fractions.

First, I will show you how to multiply a fraction with a fraction.
To multiply fractions, all you have to do is multiply the numerators and the denominators to get your answer as shown in the picture below.


Now I will show you how to multiply a mixed fraction with a fraction.
All you need to do, is convert the mixed fraction into an improper fraction, which makes it easier to multiply. Now, since the number became 39/56, that is the answer. I cannot simplify the fraction, so you just have to leave it that way.

Lastly, this is how to multiply mixed numbers, with mixed numbers.
To multiply two mixed numbers, you have to convert them both to improper fractions. Then, Ms. U taught us a way to convert an improper fraction back to a mixed number.
Who goes in the house? The numerator does.
Who's knocking on the door? The denominator does.
Then, you have to find out how many times 16 (or who ever is 'knocking on the door') goes into 121 (the one that's in the house). Then that's the whole number you put on the top. Next, you have to multiply the number on the top which is 7, and the number knocking on the door which is 16. Now you have to subtract 112 from 121. Since that gives you 9, that is the numerator of the fraction that goes with the mixed fraction.

Thanks for reading my post and please please please leave a comment! :)


Part 3 - Dividing Fractions

Explain:

1 1/2 ÷ 3/4 = 2
The way I solved this, was I used cross multiplication, or whatever that's called. :P But first, I converted the mixed number into an improper fraction, to help me multiply the fractions faster. Then, now that I have the 2 fractions, I multiplied the denominator of the first fraction, and the numerator of the second number, which makes the denominator of the answer. Next, I multiplied the numerator of the first fraction, and the denominator of the second fraction, which makes the numerator of the answer. That's how I got 12/6. :D

3/4 ÷ 1/2 = 6/4 or 1 1/2
I did the same thing for this question, but I just didn't have to convert the mixed fraction into an improper because there is no mixed fraction. :)

Friday, April 2, 2010

Argie's Growing Post

In class we learned how to multiply, divide, add and subtract fractions with whole numbers.
Here is my fraction quiz, this shows how i got my answers.






Now we had to pick a question from page 202, 208-209, and a word problem on page 208.

Two ways to multiply a fraction is to use a diagram or using fraction chart.
You can add up all the halves, or you could times the numerators together and multiply the denominators to get your answer.



Now we have to pick a question from page 208-209.
To divide a fraction by a whole number is simple. First you draw a picture and cut it into the fraction your dividing with, and shade in the part of the whole. After that is done, divide the diagram by the whole number in your equation. you divide the diagram using a horizontal line.


Finally we pick a word problem from page 208.
Iqaluit has frost on about 3/4 of the days in a year. It has frost on five times as many days as Vancouver. On what fraction of the days of the year does Vancouver have
frost?


sorry if pictures are a bit small

Sharmaine's growing post

A) This video show how i got my answer to my fraction quiz.
It show you how to divide and multiply factions with whole numbers.





B) Two ways of multiplying a fraction with a whole number is by drawing a picture.


-an example would be drawing 5 groups of 2/3. Then you would add up each group giving your answer.


Another way would be multiplying the two numerators toge
ther and keeping the denominator the same.






C) To divide a fraction by a whole number you can draw a fraction strip.


My example is 1/4
÷ 2.

Use your fraction strip and divide it into fourths. Then color in 1/4 of it. Next you divide your fraction strip in half horizontally. As shown in the picture below
.







C) How to solve a word problem:
-well first the problem is:
A pitcher of orange juice is 2/3 full. If four students equally share the juice, what fraction of the full pitcher does each student get?



Next you find the key words:
-2/3 full
-4 students
-what fraction of the full pitcher does each student get?


You will need to have a simple sentence answer:

Each student will get______of the pitcher of orange juice.



Finally you will have to solve it. To solve thi
s equation i used a fraction strip and divided it into 3rds and colored in 2/3 of it. Next I divided the strip in 4 vertical and colored in 2 rectangles giving me my answer.






COMMENT!

Part 2:

a) fraction x fraction: when you multiply a fraction by fraction, the first step is to multiply the two numerators. Then multiply the two denominators. Once you are done that you must simply your fraction if it is not yet.

3/4 x 2/5 = 6/20

b)fraction x mixed number: When you multiply a mixed number and a fraction the first step is to convert the mixed number into an improper fraction by multiplying the whole by the denominator and the adding the numerator. once you get the improper fraction, you multiply the two numerators and the two denominators. If your answer is an improper fraction, you have to change it back to a mixed number by dividing the numerator by the denominator. Then put in it lowest terms. But if your answer is a proper fraction, you just simply it to the lowest terms.

4 7/8 x 1/7 = 39/56


c)mixed number x mixed number: When you multiply mixed numbers you have to change them into improper fractions. next, you multiply the numerators and denominators. After that, you turn that improper fraction back into a mixed number. Once everything is done we simply it .

2 1/3 x 2 1/3 = 14/9



COMMENT!

Part 3:

How many 3/4's are there in 1 1/2?

To answer this equation first you draw 1 1/2 color in the whole and 1/2. next divide 1/2 into 4th. finally count how many times 3 goes into 1 1/2


how many 1/2's are there in 3/4?

To answer this equation first you draw 3/4. Next you draw a line going across to draw the 1/2. The numerator of the half is 1, so how many times does 1 goes into the shades squares? 6 times.



COMMENT!

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