What is 84 in Roman Numerals?

Steps converting 84 in Roman Numerals

We break 84 into the least expandable form, write their respective roman letter, and add/subtract them

= 80, 4

= (50 + 10 + 10 + 10), (5 - 1)

= (LXXX) (IV)

As you can see, we can break down 84 by seeing which of the biggest numbers fit and then finding smaller ones to add up to/subtract while following the rules explained below. As a result, we see that 84 in Roman Numerals is LXXXIV.

Rules

1. Basic Symbols: Use the basic Roman numeral symbols:
   • I = 1
   • V = 5
   • X = 10
   • L = 50
   • C = 100
   • D = 500
   • M = 1000
2. Combination: Combine symbols starting from the largest value to the smallest, adding their values. For example:
   • VI = 5 + 1 = 6
   • XIII = 10 + 1 + 1 + 1 = 13
3. Subtraction: Place a smaller numeral before a larger numeral to indicate subtraction. For example:
   • IV = 5 - 1 = 4
   • IX = 10 - 1 = 9
   • XL = 50 - 10 = 40
   • XC = 100 - 10 = 90
   • CD = 500 - 100 = 400
   • CM = 1000 - 100 = 900
4. Repetition: Do not repeat a numeral more than three times in a row. Instead, use subtraction:
   • III = 3 (three I's)
   • XXX = 30 (three X's)
   • 40 is not XXXX but XL
5. Order: Write numerals from left to right, starting with the largest value and moving to the smallest. Ensure that you use the proper subtraction rules where applicable.