IX and XXV Roman Numerals: Definition, Conversion, Examples and More

The letters I, V, X, L, C, D, and M were employed by the ancient Romans to represent numbers. Roman numerals are a number system that employs letters to represent numbers. Roman numerals were used for everyday tasks like counting and other daily operations. Roman numerals are represented by a number of letters from the Latin alphabet. They are frequently used to indicate the names of Popes and monarchs, as hour marks on a clock, as general suffixes for persons of all generations, etc.

Roman numerals stand for a number system that was generally adopted as the norm throughout Europe up to the late middle ages. It was created because the ancient Romans believed that after a number reached ten, it became very difficult to count with fingers. In order to facilitate trade and communication, a standardised system had to be developed.

Seven letters are used in modern Roman numerals to indicate the various numbers. These have the integer values 1, 5, 10, 50, 100, 500, and 1000, respectively, and are represented by the letters I, V, X, L, C, D, and M. Roman numerals will be quite simple for us to deal with once we have a firm grasp of the rules for reading and writing them.

On that note, let’s learn how to write and interpret two commonly used Roman numerals i.e., IX and XXV Roman Numerals in detail with examples.

IX Roman Numerals

IX Roman Numerals can be combined with other roman numerals to make numbers, as in IX = (X – I) = (10 – 1) = 9. IX Roman Numerals are translated correctly because the higher roman numerals come before the lower ones.

How to Write IX Roman Numerals?

Any of the two methods listed below can be used to get the numerical value of IX Roman Numerals:

  • With this method, we separate the roman numerals into individual letters, write the letter’s numerical value, and add or subtract the letters.

IX = (X – I)

IX = (10 – 1)

IX = 9

  • In this method, the groups of roman numerals for addition or subtraction are taken into consideration, like,

IX = 9

IX Roman numerals, therefore, has a numerical value of 9.

XXV Roman Numerals

XXV Roman Numerals can be expressed as numbers by adding the values of each Roman numeral, for example,

XXV

⇒ XX + V

⇒20 + 5

⇒25.

The translation of XXV Roman Numerals is correct because the higher Roman ones come before the lower numerals.

What does XXV mean in Roman Numerals?

You can use any of the two methods shown below to get the numerical value of the XXV Roman Numerals:

  • This method involves breaking Roman numerals into single letters, writing each letter’s numerical value, and adding or subtracting the letters as necessary.

XXV = X + X + V = 10 + 10 + 5 = 25

  • We take into account the following groups of Roman numerals for addition or subtraction in this method:

XXV

⇒ XX + V

⇒20 + 5

⇒25.

XXV Roman numerals, therefore, has a numerical value of 25.

Application of Roman Numerals in Modern Times

So, why study Roman numerals in the twenty-first century? Roman numerals, believe it or not, are being used in a number of applications today. For example:

  • In story or report outlines.
  • On clocks and watch faces, for example, IV for the numeral 4.
  • To number prefaces, forewords, and chapters in books
  • In films and major events like Rocky II and Super Bowl XLVI.
  • Monarchs like Elizabeth II and Felipe VI
  • Popes of the Roman Catholic Church, such as Pope John Paul II and Pope Benedict XVI.

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