Asked by ruth

Express 4.050505... as a fraction
Answered by Reiny
let x = 4.050505...
multiply by 100, (since the length of the repeating loop is 2 , had it been 4, I would have multiplied by 10000)
100x = 405.0505...
subtract:
99x = 401.000.. = 401
x = 401/99
Answered by scott
it is 2 digit repeating ... so multiply by 100 ... then subtract ... and divide

n = 4.050505... , 100 n = 405.050505...

99 n = 401
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