Convert recurring decimal as a fraction Watch

RBalboa
Badges: 14
Rep:
?
#1
Report Thread starter 4 years ago
#1
how do you write a recurring decimal as a fraction
e.g.
0.126(the 2 and 6 have a dot on top of them)
Thank you
0
reply
German123
Badges: 20
Rep:
?
#2
Report 4 years ago
#2
(Original post by RBalboa)
how do you write a recurring decimal as a fraction
e.g.
0.126(the 2 and 6 have a dot on top of them)
Thank you
you x by 1000 i think by a calculator.

Edit: I am not a mathematician and have not looked back at maths post GCSE, so do not take my word for it.
0
reply
RBalboa
Badges: 14
Rep:
?
#3
Report Thread starter 4 years ago
#3
(Original post by German123)
you x by 100 i think
times what by 100?
0
reply
coatsoft
Badges: 16
Rep:
?
#4
Report 4 years ago
#4
Right:
x = 0.126
1000x = 126.126
1000x - x = 126.126 - 0.126
999x = 126
x = 126/999
Cancel down bla bla bla
2
reply
German123
Badges: 20
Rep:
?
#5
Report 4 years ago
#5
(Original post by RBalboa)
times what by 100?

I think you would times 0.126(reacuring) by a thousand.

I am not certain so do not take my word for it.
0
reply
TenOfThem
Badges: 16
Rep:
?
#6
Report 4 years ago
#6
(Original post by RBalboa)
how do you write a recurring decimal as a fraction
e.g.
0.126(the 2 and 6 have a dot on top of them)
Thank you
This would have been better in maths rather than gcse

n =0.1262626

1000n = 126.262626
10n = 1.262626

If you subtract you will eliminate the decimal
0
reply
RBalboa
Badges: 14
Rep:
?
#7
Report Thread starter 4 years ago
#7
(Original post by German123)
I think you would times 0.126(reacuring) by a thousand.

I am not certain so do not take my word for it.
okay i will wait for other replies aswell but thanx
0
reply
German123
Badges: 20
Rep:
?
#8
Report 4 years ago
#8
(Original post by RBalboa)
okay i will wait for other replies aswell but thanx

There are tons of youtube videos that could help you. They will be way better than someone trying to help on here.
0
reply
RBalboa
Badges: 14
Rep:
?
#9
Report Thread starter 4 years ago
#9
(Original post by TenOfThem)
This would have been better in maths rather than gcse

n =0.1262626

1000n = 126.262626
10n = 1.262626

If you subtract you will eliminate the decimal
subtract what from what?
0
reply
RBalboa
Badges: 14
Rep:
?
#10
Report Thread starter 4 years ago
#10
thanks for the help guys, but im never going to understand this
0
reply
TenOfThem
Badges: 16
Rep:
?
#11
Report 4 years ago
#11
(Original post by RBalboa)
subtract what from what?
10n from 1000n
0
reply
RBalboa
Badges: 14
Rep:
?
#12
Report Thread starter 4 years ago
#12
(Original post by TenOfThem)
10n from 1000n
i got 125 now how do i put tht into a fraction?
0
reply
TenOfThem
Badges: 16
Rep:
?
#13
Report 4 years ago
#13
(Original post by RBalboa)
i got 125 now how do i put tht into a fraction?
Presumably you had something on the left hand side to equal 125
0
reply
German123
Badges: 20
Rep:
?
#14
Report 4 years ago
#14
(Original post by RBalboa)
thanks for the help guys, but im never going to understand this
Don't say stuff like this.

How on earth do you expect to see yourself passing with this kind of attitude?

I know it is hard as maths is not everyone's forte(it clearly is not mine)otherwise i would have given you the answer and working out straight away.

Basically, you have just got to keep trying. Also sometimes if you do not understand(sometimes maths is like that) you could just memorise the steps for a specific question and then you will get the hang of it once you have applied the same principal for similar questions-maths is after all just repetition.

0
reply
Lauren-x-
Badges: 13
Rep:
?
#15
Report 4 years ago
#15
There's 2 recurring numbers so you times that by 100. (because 100 has 2 zeros!)
x=0.12626262626... (your original number)
100x=12.6262626... (multiply original number so only the recurring numbers are on the right-hand side of the decimal)
100x-x=12.6262626.... - 0.1262626... = 12.5 (Find the difference so you get rid of the recurring numbers)
So, 99x = 12.5
x=12.5/99 (You need to divide both sides by 99 to get x)
x=25/198 (multiply fraction to get integers/whole numbers)

x=25/198
Message me if you need any additional help!
0
reply
Cherx
Badges: 19
Rep:
?
#16
Report 4 years ago
#16
(Original post by Ifailedumad)
Download the resources here: http://www.cimt.plymouth.ac.uk/proje...se/allgcse.htm scroll to the bottom where it says gcse course material printed, download the pupil textbooks

http://www.mathcentre.ac.uk/topics/ :this one is good as well

this pdf probably contains the method you are looking for: http://www.cimt.plymouth.ac.uk/proje...lgcse/bka6.pdf

I wish I had found this site during my gcses
Thank you so much for this

Great sites!
0
reply
RBalboa
Badges: 14
Rep:
?
#17
Report Thread starter 4 years ago
#17
(Original post by Ifailedumad)
Download the resources here: http://www.cimt.plymouth.ac.uk/proje...se/allgcse.htm scroll to the bottom where it says gcse course material printed, download the pupil textbooks

http://www.mathcentre.ac.uk/topics/ :this one is good as well

this pdf probably contains the method you are looking for: http://www.cimt.plymouth.ac.uk/proje...lgcse/bka6.pdf

I wish I had found this site during my gcses
Thank you
0
reply
Cherx
Badges: 19
Rep:
?
#18
Report 4 years ago
#18
(Original post by Ifailedumad)
cheers guys, use them well though, they are great but doesent mean anything if you dont read and practice the pdfs. ​Use it well haha
I've been watching through the videos right now and it's just reminded me that I have ALOT to revise

And when did you find these sites? I think the second site is for Uni students before the start their course :confused:
0
reply
Cherx
Badges: 19
Rep:
?
#19
Report 4 years ago
#19
Ohhh okay that makes sense. I just saw the ipod vids as the first heading and clicked on them.. But yeah they're slightly time consuming. Thanks for the tips and what is a torrent btw :K

And ahahah I won't be doing A-Level Maths I can barely do GCSE Maths!

Erm could I ask you with help with one question on solving equations?
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • University of East Anglia
    Undergraduate Open Day Undergraduate
    Sun, 20 Oct '19
  • University for the Creative Arts
    Undergraduate Open Day Undergraduate
    Sun, 20 Oct '19
  • University of Gloucestershire
    Undergraduate Open Day Undergraduate
    Sun, 20 Oct '19

Have you made up your mind on your five uni choices?

Yes I know where I'm applying (56)
66.67%
No I haven't decided yet (18)
21.43%
Yes but I might change my mind (10)
11.9%

Watched Threads

View All