What is IX + IX?
Add the Roman numerals IX and IX. This page will calculate the sum of IX plus IX and return the result as a Roman numeral as well as an ordinary (Arabic) number.
Answer:
IX + IX = XVIII
| Roman |
Arabic |
| IX |
9 |
| IX |
9 |
| XVIII |
18 |
Roman Numeral Symbols
| Symbol |
Number |
| I |
1 |
| V |
5 |
| X |
10 |
| L |
50 |
| C |
100 |
| D |
500 |
| M |
1,000 |
| V |
5,000 |
| X |
10,000 |
| L |
50,000 |
| C |
100,000 |
| D |
500,000 |
| M |
1,000,000 |