11 in Roman Numerals

The number 11 in Roman numerals is XI. The system of writing numbers using Roman alphabets is known as Roman Numerals. In this article, we’ll go through how to write the number 11 in Roman numerals in detail, with solved examples.

How to Write 11 in Roman Numerals?

To write the number 11 in Roman numeral, use the following method:

• To begin, reduce the number 11 to its simplest form.
• As a result, 11 = 10 + 1 is determined.
• Begin by writing the numbers in Roman numerals and add/subtract them.
• As a result, X + I = XI is used to represent 10 + 1 = 11. [Note: When a larger letter precedes a smaller letter, the letters are joined together.]
• Hence, 11 in Roman numerals is XI.

Roman Numerals Related to the Number 11

Some of the Roman numerals related to the number 11 are as follows:

11 in Roman Numeral = 10 + 1 = X + I = XI

111 in Roman Numeral = 100 + 10 + 1 = C + X + I = CXI

211 in Roman Numeral = 100 + 100 + 10 + 1 = C + C + X + I = CCXI

311 in Roman Numeral = 100 + 100 + 100 + 10 + 1 = C + C + C + X + I = CCCXI

411 in Roman Numeral = 400 + 10 + 1 = CD + X + I = CDXI

511 in Roman Numeral = 500 + 10 + 1 = D + X + I

611 in Roman Numeral = 500 +100 + 10 + 1 = D + C + X + I = DCXI

711 in Roman Numeral = 500 + 100 + 100 + 10 + 1 = D + C + C + X + I = DCCXI

811 in Roman Numeral = 500 + 100 + 100 + 100 + 10 + 1 = D + C + C + C + X + I = DCCCXI

911 in Roman Numeral = 900 + 10 + 1 = CM + X + I = CMXI

Video Lesson on Roman Numerals

11 in Roman Numerals – Solved Examples

Example 1:

What is the value of 19 – 8. Express the value in Roman numerals.

Solution:

The value of 19 – 8 is 11.

Thus, 11 in Roman numerals is XI.

Example 2:

Find the sum of XI and L. Express the sum in Roman numerals.

Solution:

We know that,

XI = 11

L = 50

So, XI + L = 11 + 50 = 61.

Hence, 61 in Roman numerals is LXI.

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