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:
I don't understand the 15.55... part
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- Thread Starter
- 02-05-2016 09:43
- 02-05-2016 09:52
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
CAO-correct answer only
OE- Or equivalent
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
- 02-05-2016 09:55
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?