9 in Roman Numerals

The number 9 in Roman numerals is IX. We know that the system of expressing numbers using Roman alphabets is known as Roman numerals. In this article, let us discuss how to write the number 9 in Roman numerals with many solved examples in detail.

9 in Roman Numerals = IX

How to Write 9 in Roman Numerals?9 in Roman Numerals

The number 9 in Roman numeral can be written using the following method:

  • First, break the number 9 into the least expanded form.
  • So, 9 = 10 – 1
  • Write the respective Roman numeral and add/subtract them.
  • Hence, 9 = 10 – 1 is written as X – I = IX.
  • Hence, 9 in Roman numerals is IX.

Roman Numerals Related to the Number 9

Some of the Roman numerals related to the number 9 are as follows:

Roman Numeral for 9 = IX

Roman Numeral for 19 = XIX = 10 + 9

Roman Numeral for 29 = XXIX = 10 + 10 + 9

Roman Numeral for 39 = XXXIX = 10 + 10 + 10 + 9

Roman Numeral for 49 = XLIX = 40 + 9

Roman Numeral for 59 = LIX = 50 + 9

Roman Numeral for 69 = LXIX = 50 + 10 + 9

Roman Numeral for 79 = LXXIX = 50 + 10 + 10 + 9

Roman Numeral for 89 = LXXXIX = 50 + 10 + 10 + 10 + 9

Roman Numeral for 99 = XCIX = 90 + 9

Video Lesson on Roman Numerals

9 in Roman Numerals – Solved Examples

Example 1:

What is the value of 20 – 11? Express the value in Roman numerals.

Solution:

The value of 20 – 11 is 9.

Thus, 9 in Roman numerals is IX.

Example 2:

Find the sum of IX and LIX. Express the sum in Roman numerals.

Solution:

We know that,

IX = 9

LIX = 59

So, IX + LIX = 9 + 59 = 68.

Hence, 68 in Roman numerals is LXVIII.

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Frequently Asked Questions on 9 in Roman Numerals

What is 9 in Roman numerals?

9 in Roman numerals is IX.

Express the value of 4 + 5 in Roman numerals.

The value of 4 + 5 is 9. Hence, 9 in Roman numerals is IX.

What should be added to 6 to get the Roman numerals IX? Express the value in words.

3 should be added to 6 to get the Roman numerals IX, which is 9. Hence, 3 in Roman numerals is III.

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