Advantages:-
Fewer numerals are needed.
No nought figure is required for positional place value purposes.
Large numbers can be expressed by using the subtractive element of the system.
having infinity numbers
roman numerals
Roman
The Roman numeral S (the Latin word for it is semis) is equivalent to a half in Arabic numeracy.
The Arabic numbers for 1859 are 1859, the Roman numerals for 1859 are MDCCCLIX.
On Converting between Arabic and Roman Numbers ,we get : xcviii in roman numerals is : 98
XXXVI
That IS the roman numeral. In Arabic numbers it would be 690.
The Roman numeral of CCCL is equivalent to the Arabic numeral of 350
On Converting between Arabic and Roman Numbers ,we get : C in roman numerals is : 100
Large numbers can be written with less numerals. EG the number eight is written as VIII in Roman numerals.In Hindu/Arabic its written as 8.Much simpler & more efficient!
CXXXIX in Roman Numerals is CXXIX. In Arabic numbers, it is 139.