5.5 as a Fraction

5.5 as a fraction is 11/2. As a mixed number that is 5 1/2.

How to convert 5.5 to a fraction

  1. 5.5 has one decimal place, so write it over 10 (a 1 followed by 1 zero) with the decimal point removed: 5.5 = 55/10.
  2. Find the greatest common divisor of 55 and 10: it is 5.
  3. Divide both by 5: 55 ÷ 5 = 11 and 10 ÷ 5 = 2.
  4. The answer is 11/2.

Since 11 is larger than 2, you can also write it as the mixed number 5 1/2: 11 ÷ 2 = 5 remainder 1.

Check

Divide the numerator by the denominator: 11 ÷ 2 = 5.5. As a percent, 5.5 = 550%.

Similar decimals

DecimalFraction
5.353/10
5.35107/20
5.37543/8
5.427/5
5.45109/20
5.628/5
5.62545/8
5.65113/20

See also: 11/2 as a mixed number.

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