9.9 as a Fraction

9.9 as a fraction is 99/10. As a mixed number that is 9 9/10.

How to convert 9.9 to a fraction

  1. 9.9 has one decimal place, so write it over 10 (a 1 followed by 1 zero) with the decimal point removed: 9.9 = 99/10.
  2. Find the greatest common divisor of 99 and 10: it is 1.
  3. Divide both by 1: 99 ÷ 1 = 99 and 10 ÷ 1 = 10.
  4. The answer is 99/10 (already in lowest terms).

Since 99 is larger than 10, you can also write it as the mixed number 9 9/10: 99 ÷ 10 = 9 remainder 9.

Check

Divide the numerator by the denominator: 99 ÷ 10 = 9.9. As a percent, 9.9 = 990%.

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Another decimal? Use the decimal to fraction converter or browse the decimal to fraction chart.