Math Student Help

a) for example, -7 5/6. How would you rename it as a decimal?
And what is the fastest way to rename rational numbers as quotients of decimals?

To "rename" your mixed number (-7 5/6) as a decimal, divide 5 by 6 and you get 0.8333. The 7 remains 7 so you get -7.8333. If the fraction was 15/16 you would divide 15 by 16 and get 0.9375. Fairly simple process, actually. The whole number remains a whole number and is to the left of the decimal (in your example it’s 7). Your decimal becomes "7.". The number to the right of the decimal is the numerator divided by the denominator.

I’m afraid I really don’t understand the second part of your question.

Hope this is useful.

Whoah this might be my 4th math qestion,sorry.Anyway yeah how can i convert decimals into mixed numbers ( with example ty ).

? ? ? ?

ex: you have 96.5. convert it to a whole number by moving the decimal place until the end so u would get 965 right? then 965 is not equal to ur original number so divide it by the number of times u moved the decimal. in this case u divide it by 10 since u moved it once to the right. u will get 965/10. if u had to move it twice then u divide it by 100, got it? then convert it to a mixed fraction by dividing the numerator with denominator to get a whole number (965 divide 10). u will get 96 no matter what the balance turns out to be. then write the balance as a numerator and maintain the denominator u will get 96 1/2. hope that helped…

lets say the system of equation is:
y= 0.5 + 1
y= -0.25 + 1

Do I have to change the decimals from the slope-intercept form into a whole number when graphing?

you could change the decimals into fractions to see the ‘rise’ over ‘run’

Hello I’m working on math homework but I don’t know how to convert decimals like 4.3 to a fraction when the only choices are as follows:
-2 1/2
-3 3/4
4 1/3
-4 1/2
And also please tell me how to convert decimals to fractions so I can do it on my own from now on. Thank you.

The answer I would go with is 4 1/3, although the correct fraction would be 4 3/10. What you do is, take the number after the point and put it over the denominator 10, 100, 1000, ect. depending on how many digits after the decimal there are. Since there is one digit (3) after the decimal, you put it over 10, because ten has one zero. So if it was 4.75 for another example, you would put the 75 over 100 like this- 75/100 because there are two digits after the decimal point and one-hundred has two zeros after the one. Oh, and it helps if you are converting to fraction, if you read the decimal as "Four and three-tenths" instead of "Four-point-three". It just helps me better.

Oh, and for converting fractions to decimals, you multiply the fraction until it is in tenths, hundreths, thousands, ect (or something that ends in a zero and starts with a one) like 6/10 or 5 & 437/1000, and then you put the numerator behind the decimal point, like 5.437.

*The exception is if the fraction is in thirds, sevenths, elevenths, or anything else that is a prime number. If you do happen to have one like this, divide the numerator by the denominator (Like if you did 1 divided by 3 and got 0.333333….) Then you would write it as 0.3 with a little bar over the three because common sense tells you the three goes on forever. The bar means ‘this number repeats forever and I don’t want to write it out’, or something along those lines. Oh, and you can use the divide-the-numerator-by-the-denominator- trick for other fractions, too. I hadn’t thought of that before.*

is there an online site that can sort out a mixture of fractions decimals & percentages into ascending order?

open office, it’s free but not online.

I got an algebra quiz tomorrow, and we’re not allowed calculators. So I’m wondering if there’s a simply (or any) way to turn fractions into decimals mentally.

Something simple like 5/4, or 19/7.

The way to turn fractions into decimals is to divide 100 by the denominator (bottom number) then multiply by the numerator (top number), then divide this answer by 100 (or move all the digits 2 places to the right). This is obviously easier when the denominator goes into 100 easily but it is useful knowing a few fractions of 100

1/2 = 50
1/3 = 33.333333
1/4 = 25
1/5 = 20
1/6 = 16.6666666
1/7 = 14.2857
1/8 = 12.5
1/9 = 11.11111
1/10 = 10
1/11 = 9.090909
1/12 = 8.33333

1/7 is the hardest to remember but you will notice that 14 is double 7, 28 is double 14 and this goes on so that you end up with

14 +
.28 +
.0056 +
.000112 +
.00000224 +
.0000000448 +
.000000000896 +
.00000000001792 and so on
————————-
14.28571428571392

Hope this helps and has not confused you further

What would .030 mean? and what would happen to the place holder rule?

A thousandth would be 0.001. 0.030 is one three-hundredth.

<<and what would happen to the place holder rule?>>

I’ve never heard the phrase.

The first position after the decimal point is for tenths, the second for hundredths, the third for thousandths and so on.

on the quicksetup I selected decimals and did my drawing but now I wanna have that same drawing on an architecture or engineering grid. is there any way to do it?

Type in DDUNITS and pick the drawing units you require from the pull downs

Regards

When rounding decimals, round up to the next digit in the sequence if the digit is equal to or greater than five. Round decimals to specific decimal places using tips from a math tutor in this free video on math skills.

Expert: Alex Martinez
Bio: Alex Martinez grew up in western Massachusetts and is currently a mechanical engineering student at the University of Massachusetts at Amherst. He’s set to graduate in 2009 with a Bachelor of Science.
Filmmaker: David Pakman

Duration : 0:1:28

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WEBSITE: http://www.teachertube.com Adding and subtracting decimals with The Rappin Mathematician.
For more info visit www.MathRaps.com

Duration : 0:2:18

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