Why roman numerals don’t have number zero?

Hint: Roman numerals, the numeric system used in ancient Rome, employ combinations of letters from the Latin alphabet to signify their values. The Roman numeral system is a positional numbering system . This system employs some capital letters as symbols to represent certain numbers , most of the numbers are written as combinations of letters .

Complete step by step answer:
While learning in the school, all of us must have wondered about the “Zero in roman numerals” , because no one talks about it, and no one teaching it and we being a child, we might not think beyond the concept.
The Roman numerals start counting the numbers from one and had no symbol or figure to represent “ \[0\] “ . This happens because the Romans did not need to have a zero in their additive (addition) system . That is, in the roman numerals figures are summed up and are always equal , whereas in our present system the value of the number depends on the position of the number , that is the number (it is the same value “ \[3\] ” in the number “ \[13\] ” to “ \[3,500,000\] ”, whereas the “L” or “D” always worth the same . That is why there is no zero in roman numerals .

Note:
The digit 0 was not needed in the Roman numeral system as this is not a positional number system. The only case when it was used was when the number was actually zero , which they called “nulla” .