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Express the recurring decimal 0.12512512...

Express the recurring decimal `0.125125125 ...` as a rational number.

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Let, `N=0.125125125 ... ...(1)`
Multiplying `N` by `1000`
`1000N=125.125125.... ...(2)`
Subtract `(1)` from `(2)`
`1000N-N=125.125125....-0.125125125 ...`
`999N=125.0000000...`
`N=125/999`
`(Answer)`
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