Hey! Sign in to get help with your study questionsNew here? Join for free to post

IGCSE maths question

Announcements Posted on
Four hours left to win £100 of Amazon vouchers!! Don't miss out! Take our short survey to enter 24-10-2016
    • Thread Starter

    Not sure what the question requires me to do.

    -Write the recurring decimal 0.1555... as a fraction.

    I just put it into my calculator and got 7/45 so i got 1 mark.

    this is what the mark scheme says:

    Name:  Screen Shot 2016-05-02 at 16.41.13.png
Views: 36
Size:  35.5 KB

    I don't understand the 15.55... part

    im assuming you take 0580 MATHS CIE like me here
    Mark scheme answers have several letters to them like B,M and all that other stuff

    here is the meaning of the letters:
    B-marks you can get even if you got the answer wrong
    M-part marks
    CAO-correct answer only
    OE- Or equivalent
    SC-special case
    Indeed/dep-independent mark/dependent mark

    The 15.55 part is 0.15... multiplied by 100 since it has over 2 decimal places. Incase you have difficulty with the recurring decimals to fractions topic i recommend you watch a video of you tube as i had difficulty with in the past.And make you sure you understand the topic since it pretty much ALWAYS comes on paper 2

    So if you say 0.1555 = x
    100x-10x= 15.555-1.555= 14 = 90x
    Simplify by dividing by 2
    14/90 = 7/45
    Hope this helps?
Write a reply…


Submit reply


Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. Oops, you need to agree to our Ts&Cs to register
  2. Slide to join now Processing…

Updated: May 2, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

What do you wear to bed?
Useful resources

Make your revision easier


Maths Forum posting guidelines

Not sure where to post? Read here first


How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups
Study resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.