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Decimals and fractions

Decimals and Fractions

Decimals and fractions

Discussion and questions for this video
How do I write a fraction as a percent
Divide numerator by the denominator, then when you have your percent, multiply the decimal by 100 and add a percent (%) sign to it.
How do you convert decimals if it's not likely to be a fraction? Ex: 4.897 & 0.12345
Take the number before the decimal as a whole number in an improper fraction. The numbers after the decimal, 897 become a numerator over 1000.
How do I write a mixed number as a percent
you can convert the mixed fraction into an improper one...... and then multiply into 100
How would I convert 3/4 to a decimal
3/4 multiplied by 100
divide 100/4=25
then multiply 25 by 3= 75
since percentage = 100
you divide 75/100
how do you convert .044867678938725895 into a fraction?
that is a huge decimal. You turn a terminating decimal to a fraction by putting the number into the numerator. then the denominator to from I think the tenth power up. then you reduce it. that would be 1/2
how do you convert a fraction into a decimal?
You should divide fraction's numerator by denominator.

For example:
3/4 = 3 : 4 = 0,75

Sal made few videos about it, here is one:
How do you get all the colors
What colors do you mean?
the area of a square Is 144ft square . what is the length of one of the sides of the square?
To find the length of the side of a square, you find the *square root* of the total area. In this case, the length would be *12 ft*, since the square root of *144* is *12*.
What is the reciprocal of 2/3?
3/2 Is the exact reciprocal of 2/3
Can any body help me with the first question of converting decimals to fractions 1?

i have to convert 0.22 into a fraction.

Please answer quickly.
First, you count the number of numbers(numerals greater than 1)on the _right_ side of the decimal place,(in your case, 2)than, you move the decimal place right that many times(in your case to get 22)than divide that number by one with that many zeros on it's right side(100) with 22 over it so 22/100. Than simplify to get 11/50.
so when i make a mixed number to improper fraction iin dividing fractons i have to flip it around again?
How do i write a fraction as a percent if the numerator is not divisible by the denominator (e.g. 5/7)?
5/7 = 0.7142857143 and so on
*100 = 71.42857143
you would have to round it as you wish. that's why it's better kept as a fraction for accuracy.
how do you convert 22/32 into decimals
You have to divide 22 by 32.
i just don't get how you can change a decimal into a fraction it has been confusing me for a while so do you think anyone could help me understand it better?
decimals into fractions: use the place value of the decimal number
.75 means 75 hundredths, so write it 75/100, then reduce (divide) 75 and 100 both by 25, to get 3/4. (75/25=3, 100/25=4)
I was a little lost but after watching the video again i got it
if you have a fraction that is like lets say 25/100 it is going to be 25 percent
it is 1/4 in fraction.
HELP!! How do you do percent times percent? It is so confusing...
it's just like regular multiplication, but you have to convert the percents to decimals first and remember the rules about how multiplying decimals work. so 50% time 60% is .5 times .6 which equals .3. convert that back into a percent, you get 30%.
Hi i just need to ask a question about turning a decimal to a fraction(duh). I have a question on your practice section that says this. Write 2.33 as a mixed number then round to the lowest terms. I tried 2 1/3 and 2 33/100 but no success. Please help and Thank You.
why don't yo explain also how to but the fraction into a percentages or into a ratios
how do i ask my teachers questions
You raise your hand and ask them
How would you simplify a fraction like this 2/6
See how many times 2 goes into six

Answer: 1/3
thanks khan accadamy is really helpful
create s compasridon problrm uding decimals
Is there an easy way to figure out how to simplify 5754/10,000?
First, look at the 2 numbers. You have 5754 and 10,000. You'd have to figure out what the GCF of both numbers are.. or just see.. 2 goes into both numbers, so divide them both by 2, and so on and so on.
are there easier ways too understand this concept for people dealing with special needs??
Try talking with your teacher about it. Maybe stay afterschool for a little bit and discuss the video. If you're homeschooled, talk with your parents or discuss it with a friend. Hope this helps! :D
please help me im getting stuck on almost every-single 1 can someone help me?
Watch it over and over agian dont let it fool you
How can I multiply decimals??
You multiply decimals just like you would multiply whole numbers. Then, when you've finished, you count the digits in your problem that are to the right of the decimals, add them together, and place the decimal in your answer the same number of spaces from the right. For example:

x 06.2 =


Then, because there are two digits on the right of the decimal in 11.12 and one digit to the right of the decimal in 06.2, if you add that together (2+1) you get three. So, in your answer, count three digits from the right and put your answer there:


Hope this helps!
13 divided by 8= what when changed into decimal
How do you convert decimals if it's not likely to be a fraction ex:8465.956 & 0.69353
They can be converted to fractions.
First, you convert the part after the dot into a fraction over a power of 10.
e.g. 8465.956 turns into 8465 956/1000.
Then, you simplify the fraction.
e.g. 8465 956/1000 can be simplified into 8465 239/250
how do i transform fractions into powers
Is it possible to have two decimals in the same number
ex. 1.32.454
no, it is not. although some percentages, such as 290.35% kind of have two, but not really.
What if it's an odd number? Or a number that just can't divide evenly? Then do we split the decimal into more? Does that make it more complicated? And what if a beginner encounters it?
can you please go slower ????
hey mvegareagan by the way what a rude thing to say you are a meen person dont talk to me that way why dont you stop being lazy find a girl friend {like you even have one}and get a life
what makes you arrived at three all over four?
75 / 100 = (3 x 25) / (4 x 25) Since 25/25 = 1, (25 is GCF of 75 and 100), 75 out of 100 is the same as 3 out of 4.
so how are you suppose to help me
Do you have a specific question?
at first i had it but now this video has made me confused so is there another video to help me?
Who did this video? I like it!
thanx khanacademy
Is 0.999999 with an endless number of nines equal to 1? I'm thinking it may be true because 0.33333333 with an endless number of threes is equal to 1/3 and 3 thirds is equal to one.
How do you simplify a fraction
To simplify a fraction, all you need to do is find the common denominator.
Don't really know if I spelled that right, but yeah. :D
How do you do a shortcut for this.
How do I covert mixed number to decimals. Like....19 1/2
For this question I would first convert the fraction part to a decimal. 1/2 = 0.5 You can do 1.0 ÷ 2 by long division to get this. Then add the whole number part. 19 + 0.5 = 19.5
33 1/3 expressed as a fraction in lowest terms
Where is the little 'Send Thanks to Sal' button? I don't see it on this video.
If I had, I would've sent thanks, but- it's not there!!
Good vid. Made it easier to understand!
I dont understand how to take a decimal and turn it into a fraction and then simplify it.. Please help me!!!
so you would just move the decimal place over? and put it over the place value?
how do you turn 2.57 into a fraction
o i get it now he explains it a lot better
how do you order fractions
first you convert them into decimals.Next or der the decimals from lesat to greatest then convert them back into a fraction. A good smart-thinking tip always label what each fraction equals to the decimal. for example 1/4=0.25 thats a good tip so its less work. :)
Division of decimal by whole number
Can this appear on the CST's?
I really dont get any of this, well...........ummm oh I dont get what he is trying to say and will any of you help me
how does this work with a big number
He is a math genius
what if it dosent have a whole # ?
how do you convert a decimal into a percentage?
Whats that suppose to mean.
Hey sal i am in 7th grade and these videos r awesome, iwas wondering how you would simplify o.oo32
it would be:

i have very difficutl promble in rationalnumber
can you help me?
how do you convert 0.0735 to a fraction huh I really need to know
I don't get it when you say the 27 I was with you till then tell me more
i need to write each decimal as a percent i don know how
To write a decimal as a percent, multiply it by 100, then add on the % symbol. You then move the decimal point two spaces to the right.
100 x .20 = 20.00 which equals 20%
100 x .53 = 53.00 which equals 53%
Hope this helps! :)
NOTICE - Your video Converting fractions to decimals has a problem and is not working. You should look into it sometime. - NOTICE
i know what ya mean. it just cuts off for me. i got too frustrated to figure it out
How do I easily find a Common Denominator? I understand what they are but how is the fastest way without Guess and Check? Is it simply X demoninator times Y denominator and Y denominator times X denominator? Or does that not always work?
13 divided by 8 = what in decimal
what about 5 .54 i do not get that
in 1.43 isnt 2 75/100 a mixed number. The problem says put it in a simplefied fraction,NOT A MIXED NUMBER?/
How would one convert a negative fraction to a decimal?
into a negative decimal.
How do you do this without a whole?? EX: 1.556
how do i get to the practice problems
go on to your file then scroll down a little then just choose one of those practice problems
how did he get the answer i don;t under stand this can some one help
Are you even watching the video?
convert the decimal to a fraction or vice versa, and then proceed as the form dictates
wat if its was like there was giomg on and on do we have to put a infinity bar yes or noo like we leave it like that?
At 0:00 why did they pick 2.75
I still don't get it. explain this to me. I am having trouble on this concept.
how do you change a decimal into a fraction?
how do you move between fractions and decimals
how to add a fraction and a decimal together
Make the decimal into a fraction. Then cross multiply.

1/4 x 0.3 =

1/4 x 3/10 = 1x3/4x10 = 0.075
What if you have something like 6/51 how would you convert that into a decimal? I'm just not understanding the process I guess. I've read the other comments and tried at school, but I can't get it in my head. I'm finishing 8th grade if that matters.
what if the number is 7.425? How do I turn it to a fraction and simplify it?
the same way in the video
Everyone has soooo many more points then i do, how do you get so many?
you play a lot of math games or watch math videos
so it depends on how big the number is to put 100 or 10 or 1000 so like
What do decimals and fractions have in common?
Well, you can think of it this way. Fractions are decimals, but just look different. Take 3/4 for example. That can also be written as 75/100. To get there, we need to do 4 times 25 and then 3 times 25. Then to write it as a decimal it would be 0.75. You might have another number before that, but that's another story.
I've been watching the same video over and over again trying to figure out what steps you used and how I could do that when I have a problem that is similar to the problem you are giving us an example of and yet I have no clue what you are doing or how I should do it. I really need help with this stuff...
cant you just put 2.75 into 75/100 and simplipy it isnt it way easier than adding 7/10 and 5/100 because 75 is more than 10 and 5 is in the 100's place and it takes lesser time well that is how i got tought.and for 75/100 an easier way is thinking that 75 is 3 quarters and 100 a dollar equal to 4 quarters
no that is not what i meant i meant to say that you leave the 2 how it was and add it.........
and then you have 2 3/4
how do you know how to convert decimal to fractions like 11/24????? help please ASAP
no, but i watch khanacademy
im counfused can anybody tell me the answer
if the whole, numerator and denominator are able to be reduced would reduce all the whole, numerator and denominator or just the numerator and the denominator?
how to add decimals and fractions
You will turn the decimal into a fraction, and then add.

ex. .37 + 11/100

.37 = 37/100

37/100 + 11/100 = 48/100 reduced to 12/25.
i like the video but it needs to be explained a little bit easier
Hey on multiplication I steel don't get it
How do I convert a decimal as a fraction or mixed number
so you can just add the fraction by making a picture.
yes, if you do it like he showed then it would make it alot easier!!!
Hey guys, I just figured out an amazing shortcut to converting decimals to fractions. If you already know how to read decimals, it should be easy. By that, I don't mean, (four point three two one). I mean, (four and three hundred twenty-one thousandths). If you don't know how to read decimals, check out this link:
Okay, back on topic. An easy way is to just read the decimal out loud, then write down the fraction just like it sounds. Here's an example:

Write 4.93 as a simplified fraction.
First, read it out loud to yourself.
_Four and ninety-three hundredths._
Now, write it down just like you read it.
4 93
Last but not least, simplify the fraction if necessary.

Pretty cool shortcut, huh?
i still don't get it can u help me
Report a mistake in the video

At 2:33, Sal said "single bonds" but meant "covalent bonds."

Report a mistake in the video

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