0.004004004… as a Fraction

0.004004004… (0.004 repeating) as a fraction is 4/999.

How to convert 0.004004004… to a fraction

  1. Let x = 0.004004004... (the underlined part, 004, repeats forever).
  2. Move the decimal point past one full repeating block: 1000x = 4.004004004...
  3. Subtract to cancel the repeating tail: 1000x − x = 4 − 0, so 999x = 4.
  4. Solve: x = 4/999. The greatest common divisor is 1, so x = 4/999 (already in lowest terms).

Check

Divide 4 by 999 on a calculator: 4 ÷ 999 = 0.004004004… which matches 0.004004004….

Similar repeating decimals

DecimalFraction
0.001001001…1/999
0.002002002…2/999
0.003003003…1/333
0.005005005…5/999
0.006006006…2/333
0.007007007…7/999
0.008008008…8/999
0.009009009…1/111

Another decimal? Browse the repeating decimal to fraction chart, the terminating decimal chart, or use the decimal to fraction converter.