LXXX Roman Numerals
LXXX in Roman Numerals can be written in numbers by combining the value of each Roman numeral, i.e., LXXX = L + X + X + X = 50 + 10 + 10 + 10 = 80. The higher Roman numerals precede the lower numerals resulting in the correct translation of LXXX Roman Numerals. In this article, let us learn how to convert Roman numeral LXXX into numbers and understand the value of LXXX in Roman numerals in English.
LXXX Meaning
The meaning of LXXX in English in the numerical form can be expressed as 80 using the following method.
 LXXX = L + X + X + X
 LXXX = 50 + 10 + 10 + 10
 LXXX = 80
How to Write LXXX Roman Numerals?
LXXX in Numbers
The value of LXXX in numbers can be found using the following methods.
LXXX Roman Numerals Translation
The numerical value of Roman number LXXX can be obtained by using any of the two methods given below:
Method 1: In this method, we break the Roman numerals into single letters, write the numerical value of each letter and add/subtract them.
 LXXX = L + X + X + X = 50 + 10 + 10 + 10 = 80
Method 2: In this method, we consider the groups of Roman numerals for addition or subtraction such as,
 LXXX = 80
Therefore, the numerical value of LXXX roman numerals is 80.
☛ Also Check: Roman Numerals Calculator
What are the Basic Rules to Write Roman Numerals?
 When a bigger letter precedes a smaller letter, the letters are added. For example: MI, M > I, so MI = M + I = 1000 + 1 = 1001
 When a smaller letter precedes a bigger letter, the letters are subtracted. For example: XL, X < L, so XL = L  X = 50  10 = 40
 When a letter is repeated 2 or 3 times, they get added. For example: III = I + I + I = 1 + 1 + 1 = 3
 The same letter cannot be used more than three times in succession.
Numbers Related to LXXX Roman Numerals
Roman numerals were used in ancient Rome and utilized combinations of letters using the Latin alphabets I, V, X, L, C, D, and M. It may seem different than numbers, but they are similar. For example, LXXX Roman numerals are equivalent to the number 80. The Roman numerals related to LXXX are given below:
 LXXX = 80
 LXXXI = 80 + 1 = 81
 LXXXII = 80 + 2 = 82
 LXXXIII = 80 + 3 = 83
 LXXXIV = 80 + 4 = 84
 LXXXV = 80 + 5 = 85
 LXXXVI = 80 + 6 = 86
 LXXXVII = 80 + 7 = 87
 LXXXVIII = 80 + 8 = 88
 LXXXIX = 80 + 9 = 89
LXXX Roman Numerals Examples

Example 1: Find the product of Roman Numerals LXXX and XXIX.
Solution:
LXXX = 80 and XXIX = 20 + 9 = 29
Now, LXXX × XXIX = 80 × 29 = 2320
Since, MMCCCXX = 2000 + 300 + 20 = 2320
Therefore, LXXX × XXIX = MMCCCXX 
Example 2: Find the difference between LXXX and VII.
Solution:
Roman Numeral LXXX is equal to 80 and VII is 7.
Now, LXXX  VII = 80  7 = 73
Since, 73 = LXXIII
Therefore, LXXX  VII = LXXIII 
Example 3: Find the sum of MDXXXVII and LXXX Roman Numerals.
Solution:
MDXXXVII = 1000 + 500 + 30 + 7 = 1537 and LXXX = 80
Now, MDXXXVII + LXXX = 1537 + 80 = 1617
Since, MDCXVII = 1000 + 600 + 10 + 7 = 1617
Therefore, the sum of MDXXXVII and LXXX Roman numerals is MDCXVII 
Example 4: Divide LXXX by LX and find the quotient.
Solution:
The Roman numeral LXXX is 80 and LX is 60.
When we divide LXXX by LX, i.e., 80 ÷ 60, the quotient is 1.
Since, 1 = I
Therefore, LXXX ÷ LX = I
FAQs on LXXX Roman Numerals
What does LXXX in Roman Numerals Mean?
We will write LXXX Roman numerals in the expanded form to determine its value. LXXX = L + X + X + X = 50 + 10 + 10 + 10 = 80. Hence, the value of Roman Numerals LXXX is 80.
What Should be Added to Roman Number LXXX to Get MMMCMXLVIII?
First, we will write MMMCMXLVIII and LXXX in numbers, i.e., LXXX = 80 and MMMCMXLVIII = 3948. Now, 3948  80 = 3868. And, 3868 = MMMDCCCLXVIII. Therefore, MMMDCCCLXVIII should be added to 80 Roman numerals to get MMMCMXLVIII.
How is LXXX Roman Numerals Written in Numbers?
To convert LXXX Roman Numerals to numbers, the conversion involves breaking the Roman numerals on the basis of place values (ones, tens, hundreds, thousands), like this:
 Tens = 80 = LXXX
 Number = 80 = LXXX
Why is 80 Written in Roman Numerals as LXXX?
We know that in Roman numerals, we write 10 as X and 50 as L. Therefore, 80 in Roman numerals is written as LXXX = 80.
What is the Remainder when LXXX Roman Number is Divided by XVII?
We know that LXXX = 80 and XVII = 17 in numbers. On dividing 80 by 17, we get a quotient of 4 and it leaves a remainder of 12. Now, 12 = XII. Therefore, when LXXX is divided by XVII, the remainder is XII.
What is LXXX in Hindu Arabic Numerals?
The value of LXXX in Hindu Arabic numerals can be calculated using the following steps.
 We break the Roman numerals into single letters, write the numerical value of each letter and add or subtract them, as the case may be.
 In this case, LXXX Roman number = L + X + X + X = 50 + 10 + 10 + 10 = 80
 Therefore, the value of Roman number LXXX in Hindu Arabic numerals is 80
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