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how do you put fractions into decimals & percents and decimals into fractiond and percents and percents into decimals and fractions??? HELP..

2006-12-18 12:58:29 · 10 answers · asked by tinkerbell 1 in Education & Reference Homework Help

10 answers

i learned this a couple of weeks ago to find fraction into fraction you would divide the bottom number into the top number lilke 4/5 is 5 into 4 you would put 4.0 then divide it put your decimal up and get .8 ask the question and i'll do them for you go to http://aplusmath.com we reviewed it today to. trust me i'm a straight a student you can also go to http://www.webmath.com/index.html

2006-12-18 13:02:01 · answer #1 · answered by Anonymous · 0 0

This may be a little more than can be quickly answered, but I'll try to give a couple of examples:

1/10 is one tenth of 1/100
10% is also one-tenth of a hundred.
A whole hundred looks like this 100, and there is an "imagined" decimal point at the end (so it would look like this - 100. - if we would write in the decimal point where it should be).

In order to turn 1/10 into a decimal you need to know that 1/10 is a tenth of a hundred. Whenever you want to change what is a whole 100 to what is part of 100 if you're dealing in tens all you have to do is move the decimal point one place toward your left hand. In other words, one tenth of 100 would be 100. with the decimal point moved toward our left hand (10.0). We would call that ten and no tenths.

If you want to get a one-hundredth of 100 you move the decimal point twice (100. gets turned into 1.00).

Turning percents into fractions: If you have 25% and want it to be a fraction you may just know in your head that 25 is one fourth (one quarter) or 100. You know that 25% equals one quarter (just as four quarters in money make a dollar - 100 pennies).

There are a lot of percents you can easily turn into fractions: You know that 10 is one tenth of 100. You know that 20 is two tenths or one fifth of a hundred. You find that by writing 2/10 but noticing it can be reduced further. You ask what number will go into both 2 and 10 evenly and realize its 2 (the lowest common denominator). You ask how many 2's go into 2 and get 1. You ask how many 2's go into 10 and get 5. Your fraction is now 1/5.

So 20% is the same as 1/5. 20% written in decimals would look like this .20 (which means 2 tenths of 100 because "percent" is always about one hundred).

35% written in decimals would be .35 What that would show is thiry five one-hundredths. (Picture a dollar - 100 pennies. Now picture 35 cents. Each penny is one-hundredth of a dollar. Thirty-five pennies makes thirty-five one-hundredths of a dollar.)

A different fraction: 2/5. 1/5 of 100 is 20, so 2/5 of 100 must be 40 - right?

40 is 40% of 100. Another way to write 40% is to ask how many tenths are in 40 (4, right?).

Another way to look at it: 50% (or half, because 50 is half of 100)
would like like this as a fraction (before you reduce it) 50/100. You ask how many times 50 goes into 50, and realize it is 1. You ask how many times 50 goes into 100 and you get 2. After reducing the original fraction you created you will get 1 over 2 or one half.

How about 3/4: You want to first figure out how many times 4 goes into 100. The answer to that is 25. 3 times 25 equals 75, so you now know that 3/4 of 100 is 75 or 75%. To change the 75 into decimals you imagine the decimal point after the 75 (75.) and move it two places (two one hundredths) toward your left hand.
Now you have .75

Final note: Any time you want to find x percent of something you multiply that something by the percent written with the decimal.
Any time you are writing a percent the decimal point is always before the number, Remember to move the decimal point after multiplying.

I don't know if any of this helps or not, but good luck.

2006-12-18 21:36:57 · answer #2 · answered by WhiteLilac1 6 · 0 0

To put fractions into decimals, all you do is divide the numerator by the denominator. To put percents into fractions, its like 75% is 3/4, so you can calculate that easily. decimals into fractions is like 0.75 is equal to 3/4, which means 1 is 4/4. To put percents and decimals into fractions just do the opposite. Hope that helps :).

2006-12-18 21:03:22 · answer #3 · answered by Anonymous · 0 0

like for 4/5 u do 4 divided by 5. for percents if it's like 90% it would be .9 u just move the decimal 2 to the left. decimal into fraction is easy. if its .7 it would be 7/10. it's just how u say it seven tenths

2006-12-18 21:02:58 · answer #4 · answered by Anonymous · 0 0

eg. if it was 1/4
- fraction into decimal
1 divided by 4= 0.25
- fraction into percent or decimal into percent
1/4*100= 25% or 0.25*100 = 25%
- percent into decimal
25%/100= 0.25
- percent into fraction
25/100, if you simplify it, it will give you 1/4
- decimal into fraction
0.25, make it 0.25/1, multiply the numerator by 100 and the denominator by 100, which will give you 25/100 and then if you simplify it, it will give you 1/4

2006-12-18 21:21:41 · answer #5 · answered by ;) 1 · 0 0

a fraction is a math problem 2/3 is 2 divided by 3 .67 is 67/100 Davide both by 33 almost 2/3 a percent is divided by 100 .67 is 67/100 or 67 percent hope that helps

2006-12-18 21:04:21 · answer #6 · answered by shark_or_gup 2 · 0 0

for fractions into decimals, divide the numerator by the denominator. for decimals into fractions, put the number over 100 and simplify.

2006-12-18 20:59:59 · answer #7 · answered by 120 IQ 4 · 1 0

easy. fractions to decimals: for instance you have 1/2 and it needs to be a decimal. All you have to do is draw out a circle and cut it in half and shade it in. your anser would be 0.50 or 50%

2006-12-18 21:04:33 · answer #8 · answered by ♥.:ily:.♥ 1 · 0 0

fraction to decimal:

divide the fraction. in other words, 1/10 = .1

fraction to percent:

take the .1 above and multiply it by 100 and add the % sign. in other words, 10%

2006-12-18 21:02:03 · answer #9 · answered by jaden404 4 · 0 0

try this site...it's pretty good

2006-12-18 21:03:51 · answer #10 · answered by wut's a girl 2 do? 2 · 0 0

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