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#1 2006-01-19 14:17:26

macarena
Guest

fractions

I need help in fraction problems for example:
 

   in my homework they asked me, " what is 1 over 100 as a percent.
and they give you the answer choices of 5.1% 51% 510% 5100% or nh.
how do you change the fraction 1 over 100 to one of the choices they give you?:)
dunno how to do these things because my teacher hasn't taught us that yet.

#2 2006-01-19 16:49:19

ryos
Member
Registered: 2005-08-04
Posts: 394

Re: fractions

"Dale a tu cuerpo alegría, macarena..."

Ahem. 1/100 as a percent is 1%. Percent means "out of 100", so if you have any number divided by 100, then the numerator is the percent.

Of course, that's not one of your choices, unless "nh" is supposed to mean "not here," in which case I would pick that.


El que pega primero pega dos veces.

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#3 2006-01-20 06:21:58

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,552

Re: fractions

Let's do an easy one.
What is the number 2 in percent.
2 is 2.000000, so move the decimal point
over to the right by two spots.
2.00000000000 becomes 200.0000000000000000000000
So the answer is 200 percent.
2 is 200 percent.
Always move the decimal place over rightward 2 spots.


igloo myrtilles fourmis

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#4 2006-01-20 06:33:12

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,552

Re: fractions

Now let's do 3 over 7 as a percent.
Use long hand division to divide
3 by 7 shown below.
So 0.4285 becomes
     042.85 when move decimal to the right two spots.
       42.85%  Yeah!!

          0 . 4 2 8 5 etc...
        ____________________________
     7 ) 3 . 0 0 0 0 0 0 0 0 0 0 0 
          0
        ___  
          3   0
          2   8
         _____
               2 0
               1 4
              ____
                  6 0
                  5 6
                 ____
                     4 0

The dividing keeps going, but I decided
to stop because we went far enough
to be a little accurate.

Last edited by John E. Franklin (2006-01-20 06:36:21)


igloo myrtilles fourmis

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#5 2006-01-20 09:20:52

MathsIsFun
Administrator
Registered: 2005-01-21
Posts: 7,529

Re: fractions

macarena wrote:

in my homework they asked me, " what is 1 over 100 as a percent.
and they give you the answer choices of 5.1% 51% 510% 5100% or nh.

As the question stands, 1 over 100 (1/100) is exactly 1%, so I don't know where those answers came from dizzy

51/1000 = 5.1%
51/100 = 51%
51 = 5100%


"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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#6 2006-01-20 16:35:53

VR Hawks
Member
Registered: 2005-11-26
Posts: 401

Re: fractions

The answer is supposed to be nh, because 1/100 equals 1%.

Just remember that /100 is the %.

Like: 50/100 = 50%


Name :: Vincent Raider Hawks
Gender :: Male
Birth Date :: July 4 , 1970

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