Convert recurring decimal as a fraction

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

Scroll to see replies

Reply 1

German123

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.

(edited 9 years ago)

Reply 2

RBalboa

Original post by German123

you x by 100 i think

times what by 100?

Reply 3

coatsoft

Right:
x = 0.126
1000x = 126.126
1000x - x = 126.126 - 0.126
999x = 126
x = 126/999
Cancel down bla bla bla

Reply 4

German123

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.

Reply 5

TenOfThem

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

Reply 6

RBalboa

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

Reply 7

German123

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.

Reply 8

RBalboa

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?

Reply 9

RBalboa

thanks for the help guys, but im never going to understand this :smile:

Reply 10

TenOfThem

Original post by RBalboa

subtract what from what?

10n from 1000n

Reply 11

RBalboa

Original post by TenOfThem

10n from 1000n

i got 125 now how do i put tht into a fraction?

Reply 12

TenOfThem

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

Reply 13

German123

Original post by RBalboa

thanks for the help guys, but im never going to understand this :smile:

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.

:smile:

Reply 14

Lauren-x-

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 :smile:

Message me if you need any additional help!

Reply 15

Cherx

Thank you so much for this :smile:

Great sites!

Thank you

I've been watching through the videos right now and it's just reminded me that I have ALOT to revise :frown:

And when did you find these sites? I think the second site is for Uni students before the start their course :confused:

Reply 18

Cherx

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?

Quick Reply

Latest

Articles for you

Edexcel A-Level Economics Paper 1 - Unofficial Mark Scheme - 18 May 2023

What is an LLM and how could it benefit your career?

Powerful questions business students forget to ask their career advisers

Why I chose a law degree and what studying law was like

Convert recurring decimal as a fraction

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you