

07122007, 05:53 PM

#1

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Join Date: Jul 2007
Posts: 120

Math Help ! Math people I beg of you !
I have a block right now. I forgot how to convert a fraction to just a number.
( How do you get 3/4 )
( 2 and 1/2 )
converted to just numbers ?
Also can you tell me how you did it. Thanks !
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07122007, 05:56 PM

#2

Golden Master
Join Date: Feb 2005
Posts: 7,366

Re: Math Help ! Math people I beg of you !
0.75
2.5
3/4 is a quarter of one. one quarter is 0.25, therefore three quarters is 0.75
2 and 1/2 is easy, 1/2 of 1 is 0.5, therefore 2.5
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07122007, 05:59 PM

#3

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Join Date: Mar 2007
Posts: 5,410

Re: Math Help ! Math people I beg of you !
If by "just numbers" you mean decimals then yes, 3/4 is .75... 2 1/2 is 2.5.
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07122007, 06:02 PM

#4

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Join Date: Jul 2007
Posts: 120

Re: Math Help ! Math people I beg of you !
How do you know this !!!!!!11111
But yeah Thanks a bunch !!!
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07122007, 06:05 PM

#5

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Join Date: Mar 2007
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Re: Math Help ! Math people I beg of you !
Edit: Reworded.
That is not that difficult with a little bit of studying... However as boring as it seems, it is a must to master those sorts of things if you want to do something more interesting, like this:
x = {q + [q2 + (rp2)3]1/2}1/3 + {q  [q2 + (rp2)3]1/2}1/3 + p
where
p = b/(3a), q = p3 + (bc3ad)/(6a2), r = c/(3a)
AND:
Sample standard deviation for a frequency distribution:
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07122007, 06:13 PM

#6

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Join Date: Oct 2006
Posts: 6,928

Re: Math Help ! Math people I beg of you !
Quote:
Originally Posted by WindowsXP
How do you know this !!!!!!11111
But yeah Thanks a bunch !!!

well with fractions . 4/4 is the same as 1 so if you divide 1 by 4 you get 0.25 and the times that by the number on the top or to the left which in this case was 3 so 3X0.25=0.75.
Quote:
Originally Posted by Thelis
This is second grade stuff... When you get to my level of math you are dealing with this:
x = {q + [q2 + (rp2)3]1/2}1/3 + {q  [q2 + (rp2)3]1/2}1/3 + p
where
p = b/(3a), q = p3 + (bc3ad)/(6a2), r = c/(3a)
AND:
Sample standard deviation for a frequency distribution:

That realy isnt helpfull or necesery , people have different levels of inteligence and different subjects they are good at . I am not very good at maths tbh but hey at least i tried to help the dude not just belittle him then brag about what you can do
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07122007, 06:16 PM

#7

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Join Date: Mar 2007
Posts: 5,410

Re: Math Help ! Math people I beg of you !
Ok, sorry about that muz.
I apologize, so I am going to help out.
Try this out. Take the fraction that you want to make a decimal, ie, 3/4.
Multiply it by a 100, so you get:
300/4
Then just divide 300 by 4, so you get 75. Then divide by 100 since you multiplied by it earlier, and voila, you get .75.
With 2 1/2, think of it first as 2 wholes, so 2, then 1/2, do the same process, and get .5. Add .5 to 2 and you get 2.5.
Those are useful tricks.
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07122007, 06:16 PM

#8

Golden Master
Join Date: Apr 2006
Posts: 7,534

Re: Math Help ! Math people I beg of you !
Quote:
Originally Posted by Thelis
This is second grade stuff... When you get to my level of math you are dealing with this:
x = {q + [q2 + (rp2)3]1/2}1/3 + {q  [q2 + (rp2)3]1/2}1/3 + p
where
p = b/(3a), q = p3 + (bc3ad)/(6a2), r = c/(3a)
AND:
Sample standard deviation for a frequency distribution:

You just reminded me why I hate math.
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07122007, 06:20 PM

#9

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Join Date: Oct 2006
Posts: 6,928

Re: Math Help ! Math people I beg of you !
Quote:
Originally Posted by Thelis
Ok, sorry about that muz.
I apologize, so I am going to help out.
Try this out. Take the fraction that you want to make a decimal, ie, 3/4.
Multiply it by a 100, so you get:
300/4
Then just divide 300 by 4, so you get 75. Then divide by 100 since you multiplied by it earlier, and voila, you get .75.
With 2 1/2, think of it first as 2 wholes, so 2, then 1/2, do the same process, and get .5. Add .5 to 2 and you get 2.5.
Those are useful tricks.

Nah its ok nobody is perfect . not even mods lol
but yeah thats the method my maths teacher taght me waay back and it is a good method and is kind of easy to work with whole numbers like 300's and 75's rather than than decimals
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07122007, 06:25 PM

#10

Golden Master
Join Date: Feb 2005
Posts: 7,366

Re: Math Help ! Math people I beg of you !
Quote:
Originally Posted by muz
Nah its ok nobody is perfect . not even mods lol

oi! worship the mods.. thou shalt be banned
or not.. im nice really
diffensials and integrals (apart from being impossible to spell) are a nightmare.. i spent most of this year doing them, lol, and im still useless.. most of the maths i use is electronics based.. like working out power consumption, current through components etc.. all good fun
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