what does Ix mean in roman numerals

IX in Roman numerals means 9.

Quick Scoop

• I = 1 and X = 10.

• When a smaller numeral comes before a larger one, you subtract it (this is called the subtractive principle).

• So IX = 10 − 1 = 9.

A handy example:
XI would be 10 + 1 = 11, but IX is 10 − 1 = 9.

Information gathered from public forums or data available on the internet and portrayed here.