Roman Numeral

Roman Numerals or Roman Numbers are originated in ancient Rome. Its letters are derived from earlier non alphabetical symbols. Roman numerals are combination of seven letters in the table below.

Roman Numerals: Letters and its Value

Letter	Value
I or i	1
V or v	5
X or x	10
L or l	50
C or c	100
D or d	500
M or m	1000

There is no Zero in Roman Numerals. If smaller numbers follow larger numbers, the numbers are added. If a smaller number precedes a larger number, the smaller number is subtracted from the larger.
Based on the above table and rule, the first ten roman numerals are defined in the table below.

Numeral		Value
I	1	1
II	1+1	2
III	1+1+1	3
IV	5-1	4
V	5	5
VI	5+1	6
VII	5+1+1	7
VIII	5+1+1+1	8
IX	10-1	9
X	10	10

Examples of Roman Numerals and its value.

Numeral		Value
XV	10+5	15
XX	10+10	20
MD	1000+500	1500
XD	500-10	490
XM	1000-10	900
MCMLXXXIV	1000+(1000-100)+50+10+10+10+(5-1)	1984

Fractions:

Fraction	Roman Numeral
1/12	.
2/12	..
3/12	…
4/12	….
5/12	…..
6/12	S
7/12	S.
8/12	S..
9/12	S…
10/12	S….
11/12	S…..
12/12	I

Large Numbers:

Roman Numeral	Value
|Ɔ	500
C|Ɔ	1000
|ƆƆ	5000
CC|ƆƆ	10000
|ƆƆƆ	50000
CCC|ƆƆƆ	100000

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Related topics:
Numeral System   |   Number Types   |   Indian Numeral   |   Hindu Arabic Numeral   |   Greek Numeral

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List of topics: Maths

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