## what is fraction for decimal .151515 (the 15 keeps on going)

Simple patterns, variables, the order of operations, simplification, evaluation, linear equations and graphs, etc.
nicknation
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Joined: Wed Mar 11, 2009 3:28 pm

### what is fraction for decimal .151515 (the 15 keeps on going)

I would like to know what the fraction is for the decimal .151515 (the 15 keeps on going )?

Martingale
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### Re: what is fraction for decimal .151515 (the 15 keeps on going)

I would like to know what the fraction is for the decimal .151515 (the 15 keeps on going )?
let x=.1515...

then 100x=15.1515...

subtract x from 100x

100x=15.1515...
- x=.1515...

99x=15
x=15/99

nicknation
Posts: 23
Joined: Wed Mar 11, 2009 3:28 pm

### Re: what is fraction for decimal .151515 (the 15 keeps on going)

how did you know to times by 100?

Martingale
Posts: 333
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### Re: what is fraction for decimal .151515 (the 15 keeps on going)

how did you know to times by 100?
because there are two digits that are repeating

nicknation
Posts: 23
Joined: Wed Mar 11, 2009 3:28 pm

### Re: what is fraction for decimal .151515 (the 15 keeps on going)

so use 100 for 0.345345345...?

Martingale
Posts: 333
Joined: Mon Mar 30, 2009 1:30 pm
Location: USA
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### Re: what is fraction for decimal .151515 (the 15 keeps on going)

so use 100 for 0.345345345...?

there are 3 digits repeating here...use 1000

nicknation
Posts: 23
Joined: Wed Mar 11, 2009 3:28 pm

### Re: what is fraction for decimal .151515 (the 15 keeps on going)

sry thats what i ment thnx