What is 9 in roman numerals?

 

What is 9 in roman numerals?

What is the roman numerals for the number nine.

The I roman numeral is equal to the number 1:

I = 1

The X roman numeral is equal to the number 10:

X = 10

Nine is equal to ten minus one:

9 = 10 - 1

IX is equal to X minus I:

IX = X - I

So the roman numerals for the number 9 is written as IX:

9 = IX

 

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