Percentages refer to fractions of a whole; that is, whatever you're looking at, the percentage is how much of the whole thing you have. For instance, "50%" means " 1/2 "; "25%" means " 1/4 "; "40%" means " 2/5 "; et cetera.
Often you will need to figure out what percentage of something another thing is. For instance, if a class has 26 students, and 14 are female, what percentage of the students are female? It is 14 out of 26, or 14/26 = 0.538461538462..., or about 54%. (For more information on percent word problems, look at the Percent of lesson.)
"Percent" is actually "per cent", meaning "out of a hundred". (I think it's Latin.) You can use this fact, along with the fact that fractions mean division, to convert between fractions, percents, and decimals.
Percent to Decimal
Percent-to-decimal conversions are easy; you mostly just move the decimal point two places. The way I keep it straight is to remember that 50%, or one-half, of a dollar is $0.50. In other words, you have to move the decimal point two places to the left when you convert from a percent (50%) to a decimal (0.50). Some more examples are:
27% = 0.27
104% = 1.04
0.5% = 0.005
Percent to Fraction
Percent-to-fraction conversions aren't too bad. This is where you use the fact that "percent" means "out of a hundred". Convert the percent to a decimal, and then to a fraction. For instance:
read more here --> http://www.purplemath.com/modules/percents.htm
2006-11-09 12:09:59
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answer #1
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answered by DanE 7
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To convert from a fraction to a decimal, divide the denominator by the numerator.
To convert from a fraction to a percentage, multiply the decimal form of the fraction by 100.
Example: 1/10 = .10 = 10%
2006-11-09 12:17:39
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answer #2
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answered by STILL standing 5
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Converting a fraction to a decimal
50 / 100 = 1/2 =
1 / 2 = 0.5
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Converting a decimal to percent
Multiply the decimal by 100 and attach the Percent sign
0.5 x 100 = 50%
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2006-11-09 12:31:31
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answer #3
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answered by SAMUEL D 7
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change fraction to a decimal by dividing the denomenator by the numerator. change the decimal to a percentage by by multiplying by 100.
2006-11-09 12:11:26
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answer #4
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answered by Nicky 2
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a fraction to a decimal ummmm you divide the top # by the bottom # i dont know how to do a percentage
2006-11-09 12:10:09
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answer #5
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answered by iamrawrness. 2
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Divide the numerator with the help of the denominator and that's the decimal equivalent then multiply this with the help of one hundred and that's the share. occasion: you have the fraction a million/4, dividing a million with the help of four is comparable to 0.25which is the decimal equivalent, multiplying this with the help of one hundred you get the share that is 25%
2016-11-23 13:25:05
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answer #6
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answered by berson 4
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do long division on it.
like 1 div 2 =.5
for percent
do div the same way then multiply by 100
1 div 2 = .5 *100 = 50%
2006-11-09 12:10:45
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answer #7
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answered by smc8098 2
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