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iam no good at fractions and percentages.i always forget how to solve them. i need help.

2007-04-09 06:30:19 · 9 answers · asked by angel 1 in Science & Mathematics Mathematics

9 answers

5/100

1/20

anything where the numerator is 20 times larger
than the denominator

also stuff like.. 25/500

2007-04-09 06:33:14 · answer #1 · answered by phoenixrisers 3 · 0 0

Ans
A fraction has two parts-Numerator and Dinominator
Ex:Consider 3/4
Here 3is the Nr.
4 is the Dr.

A fraction is ivided into 3

1.Simple fraction:Nr Ex:1/2,5/7,99/999 etc
2.Improper fraction:Nr>Dr
Ex.3/2,4/3,27/3 etc
and 3.Mixture fraction:An integer+proper fraction
Ex.3.1/2,5.2/3etc
Now over to your problem:
5%=5/100=1/20, a proper fraction
Multiply Nr and Dr with 2,3,4.......n you get the fractions = to 5%
Its general form is n/20n where n=1,2,3........
Ex:1.
To find the 40% of 600?
Ans:
40% of 600=600*40/100
=60*40
=240
Ex;2
40% of a number is 240, find the number?
Ans:
Given
40% of a number is=240
That is,
Numeber*40%=240
Number*40/100=240
Multiplying throughout with 100 we get,
Number*40=240*100
Therefore,
Number=(240*100)/40
=24000/40
=600
This way you can do more problems
Good Luck

2007-04-09 13:46:19 · answer #2 · answered by ckoottunkal 2 · 0 0

5/100 = 1/20 = 10/200 (and other multiples)

to find percentages just divide the nominator by the denominator and multiply by 100.

e.g. 5/100
5 is the moninator
100 the denominator

5/100 x 100 = 5%

2007-04-09 13:34:41 · answer #3 · answered by Riti 3 · 0 0

Just remember that % means hundredths.
So 5% is 5/100.

You can change 5/100 into other equal fractions by reducing or by multiply the top and bottom by the same number.

5/100=1/20 (If you divide top and bottom both by 5).
5/100=10/200 (If you multiply top and bottom both by 2).
5/100=15/300 (If you multiply by 3/3). and so on.

2007-04-09 13:33:46 · answer #4 · answered by ecolink 7 · 1 0

5%=1/20

2007-04-09 13:36:09 · answer #5 · answered by Anonymous · 0 0

5/100, 1/20

2007-04-09 13:33:42 · answer #6 · answered by Anonymous · 0 0

5%=50/1000=5/100=1/20

2007-04-09 13:34:41 · answer #7 · answered by Abdullahi S 1 · 0 0

start w/ 5/100
(5/100) ...1/20 .. 2/40 ... 3/60 ....

50 / 1000 .... 500 / 10000 ....

2007-04-09 13:33:29 · answer #8 · answered by Brian D 5 · 0 0

1/20
2/40
3/60
4/80
5/100

2007-04-09 13:33:23 · answer #9 · answered by Angel in Hell 3 · 0 0

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