can someone explain this math to me?

Question

I need examples...because My teacher will not explain this to me :(

Converting Special Fractions to Percents
Converting Decimals to Percents
Converting Decimals to Fractions
Converting Fractions to Percent

Please just give me one example of each, I need the help bad.

Answer 1

What do you mean by special fractions?

The others:

decimals to %: move decimal point two places to the right
ex: 0.0375 => 3.75%
ex: 2.75 =>275%

Decimals to fractions:
Place everything between leading zeroes and trailing zeroes on top of the fraction. Place 1 with the same number of digits as in the original decimal (after the decimal point excluding trailing zeroes) on the bottom of the fraction. Reduce fraction to lowest terms.
0.000756 => 756/1,000,000 =>378/500,000 =>189/250,000
0.0007560 = same as before b/c you ignore the last zero
0.0007056 = 7056/10,000,000....reduce

Fractions to %: fraction to decimal first, then decimal to % (see above)
fraction to decimal: divide top by bottom

ex: 3/8 = 0.375....37.5%

Answer 2

Converting Special Fractions to Percents
Not sure what a special fraction is. But any fraction such as 7/8 is coverted to % by first converting it to a decimal. To convert to decimal simply by dividing 7 by 8. You would get 7/8 = .875. Now to convert to % simply move the decimal point two places to the right getting 87.5%.

Converting Decimals to Percents
.07 = 7% .55 = 55% .0005 = .05% 1.00 = 100%
Just move thedecimal point 2 places to the right.

Converting Decimals to Fractions
.5 = 5/10 = 1/2 .75 = 75/100 = 3/4 12.2 = 12 2/10 = 12 1/5
.875 =875/1000 = 7/8. Notice how you divide by 10 if the decimal is ust one digit like .5, divide by 100 if the decimal is 2 digits like .75, divide by 1000 if the decimal is 3 digits like .875, etc.

Converting Fractions to Percent
Do the same as explained in the first paragraph. Perhaps a special fraction is 1/3 which results in the repeating decimal 0.33333333333333.....forever. Then this would be 33.333333333.... forever %. or more simply 33 1/3%.

Answer 3

OKay, so:

1) By "special" fractions, I hope you mean something liek this 176/177 (so fractions HARD to solve in the head).
Well if you want the % of that, well you do 176/177 * 100 / 177, unfortunately, I would still recommend doing that on the calculator, so it's still hard to do in other words. So in this example if you multiply 176 by 100 and divide by 177, you would get a two digit number, that is you percentage of 177.

2)Now to convert decimals to %, thats very easy, no matter how "special" they get :) Like 0.576 is 57.6 percent (How i know that? well all you have to do is to move the entire "thing" 2 decimal places to the left, so I moved 576 to the left twice and I got 57.6)

3)Decimals to fractions is almost the same as decimals to %. i would recommend, doing what i showed you before, make the number a percent, then write it as a fraction, so 57.6 % as 576/1000, then simplify taht as much as possible liek this 288/500 = 144/250 = 72/125

40 lastly, fractions to percent is the same as 'special' fractiosn to percent. Hope that helps, Good LUCK ^^

Answer 4

#1 - not sure what a "special" fraction is, but 3/4 would be 75%.

#2 - Easy - what ever is on the right side of the decimal point would be your percent = 0.67 would be 67%.

#3 - 0.75 = 3/4, 0.25 = 1/4

#4 - 3/4 = 75%, 1/4 = 25%

Hope this helps

Answer 5

to convert 3/4 into decimal you devide 3 by 4 and end uo with .75 decimal.

Answer 6

7D^2 - 35D = 0 divide 7 from the two facets. D^2 - 5D = 0 exchange into: D^2 - 5D = D(D - 5) = 0 you may verify by utilising utilising the distributive belongings it particularly is a(b+c) = ab+ac. now, it particularly is the two D=0, or D-5=0 because of the fact something accelerated by utilising 0 equals 0. the respond is D=0 or 5

Answer 7

1 1/2 Is 150%
0.2 is 20%
0.05 is 5%
0.24 is 6/25(lowest terms, or 24/100)
and 2/3 is 66%

hope this helps and gives you a good idea of it

Answer 8

I suck at math so i can't help you, but maybe this will
http://www.ehow.com/how_18398_understand-fractions-percentages.html.
hope it does help you.