1/2 divide by 2/3.
well first u need to: switch to multiplication. 1/2 x 2/3
second: reverse second number: 1/2 x 3/2. (reverse 2/3 to 3/2) always reverse the second set.
third: Multiply across: 1 x 3= 3 and 2x2=4 the answer is 3/4.
the problem before this one: (11/2) / (2/3)
11/2 x 2/3
11/2 x 3/2
11x3= 33
2x2 =4
33/4
try this site... its a little confusing, but my method is at the bottom of the site. http://www.themathpage.com/ARITH/multiply-fractions-divide-fractions-2.htm
2006-08-07 16:55:16
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answer #1
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answered by girly girl just wondering 2
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Mechanically, without the theoretical explanation:
If you are going to divide Fraction 1 by Fraction 2:
METHOD 1
1. Put fraction 1 next to fraction 2
2. Invert Fraction 2. Leave fraction 1 the way it is
3. MULTIPLY the top two numbers ( the top of fraction 1 and the "new" top of fraction 2.
4. MULTIPLY the bottom two numbers (the bottom of fraction 1 and the "new" bottom of fraction 2.
5. Divide the top product by the bottom product.
Then comes the good stuff:
METHOD 2
Start applying the old stuff like simplifying fractions.
Example of Method 1:
4/7 divided by 24/14
Step 1:
4/7 . 24/14
Step 2:
4/7 . 14/24
STEP 3:
4/7 X 14/24
= 56 / 168
= 28/84 (dividing top and bottom by 2)
= 14/42 (dividing again by 2)
= 7/21 (dividing again by 2)
= 1/3 (dividing by 7)
Method 2
Same as Method 1 until step 2 but then you simplify the fractions
4/7 divided by 24/14
Step 1
4/7 . 24/14
Step 2
4/7 . 14/24
Step 3 (simplify)
divide the 4 and 14 (on the tops) by 4, giving a result of 14. at the same time, you divide the bottom numbers at the same time by 4 giving you 7 times 6 (24 divided by 4)
then
divide the top and the bottom by 7, giving you a result of 2 on the top, and 6 on the bottom.
that gives you 2 over 6, which is 1 over 3
2006-08-08 00:11:21
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answer #2
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answered by Ogelthorpe13 4
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you have your first fraction and your second fraction. turn the second fraction up side down (this is called the reciprocal) and multiply it by the first fraction. Example
4/7 divided by 2/3
4/7 divided by 3/2
this equals 12/14.
I'm pretty sure that how it'd done.
2006-08-08 01:05:44
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answer #3
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answered by marisha z 3
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We use an acronym K-C-F
K: Keep
C: Change
F: Flip
Keep the first fraction, change the sign to multiplication, and flip the second fraction upside down.
2006-08-11 12:23:09
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answer #4
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answered by Melissa F 5
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Change the sign and reverse the 2nd fraction. Remember that and you've got it made. Other people on here are making it way too difficult.
2006-08-10 01:11:34
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answer #5
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answered by elizabeth_ashley44 7
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Easy! Just flip the numbers the second fraction and multiply!
2006-08-08 17:58:34
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answer #6
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answered by Elizabeth Q 1
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The way I do it, is to change the fractions into decimal places.
for example 11/2=5.5 and 3/5
So the problem :
= (11/2) / (2/3)
= 5.5 / .6
= .92
2006-08-07 23:47:06
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answer #7
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answered by Katie Victoria 3
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just give me an actual question and I'll help you. It's hard to explain without a question.
2006-08-12 10:50:24
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answer #8
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answered by Xtina R 1
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I couldn't grasp 'em via e-mail eothger.
2006-08-08 03:21:24
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answer #9
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answered by Anonymous
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where is your source to this question
http://answers.yahoo.com/question/index;_ylt=ApJyPzI8q_I5PAj5NOuQemXsy6IX?qid=20060803140124AA0ifRF
just curios
2006-08-12 05:59:41
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answer #10
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answered by Anonymous
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