recurring decimals (1 Viewer)

[the dr is in]

I am looking for some practice questions for converting recurring decimals to fractions. Where could I find some.

thanks
Kane

 

[Timothy.Siu]

u can just make them up
i'll do some if u want
1. convert 0.111111..... to a fraction
2.convert 0.413413413413.... to a fraction
3. concert 0.216161616..... to a fraction

 

[vds700]

I am looking for some practice questions for converting recurring decimals to fractions. Where could I find some.

thanks
Kane

textbooks maybe??

also have a look at

http://books.google.com.au/books?id...X&oi=book_result&resnum=6&ct=result#PPA115,M1

as the previous post said, u can make your own and check your answers are right by putting them in your calculator

 

[kaz1]

If you have Cambridge year 11. There's some in chapter 2.

 

[ratcher0071]

u can just make them up
i'll do some if u want
1. convert 0.111111..... to a fraction
2.convert 0.413413413413.... to a fraction
3. concert 0.216161616..... to a fraction

1) 1/9

2) let x=0.413413413...
1000x=413.413413...
x=0.413413413...
1000x-x=999x
999x=413
x=413/999

3) let x=0.2161616...
1000x=216.161616...
10x=2.161616...
1000x-10x=990x
990x=214
x=214/990
x=107/495

I just felt like answering them