In Europe, the Hindu-Arabic numerals gradually displaced the Roman numerals over a long period, from about 1000 AD to about 1500 AD. After that time, Roman numerals were no longer used in calculations.
Roman numerals remained in use in "official" contexts, such as dates on the foundation stones of buildings, up to very recently. They are also still used in the names of monarchs (Queen Elizabeth II, Louis XIV of France), and Popes (Pope Pius X).
Also the introductory pages of books are often labelled with Roman numerals.
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A) Arabic numerals are in numbers whereas Roman numerals are in letters.B) Even if Roman numerals are in letters the symbols are easier to understand, despite the fact that Australians and Americans and most probably you write numbers using the system of Arabic numerals.C) The system of Roman numerals was invented before the system of Arabic numerals, but people use the system of Arabic numerals to write more frequently.
No, fractions cannot be changed into decimals using Roman numerals. Roman numerals are a numeral system used in ancient Rome, which does not have a way to represent fractions or decimal numbers. Decimal numbers are represented using a base-10 system with digits ranging from 0 to 9.
Hindu Arabic is the number we use like 1,2,3,4........ Roman numbers are the numbers Romans were using like I,II,III,IV,V.........Improved Answer:The main difference between Hindu-Arabic numerals and Roman numerals is the absence of a nought figure in the Roman numeral system.
The Roman numerals for the number 2 are "II". Consequently, to represent the 2 Australian Olympians using Roman numerals, we would write "II".
They were developed using a Roman system that worked out for pretty much all of the Romans