It looks like the letter N which is the symbol for nought and nothing can't be subtracted from anything because it remains the same.
Chat with our AI personalities
The fives (V=5, L=50, D=500) are never subtracted in Roman numerals, because, for example, VX for 5 (10-5=5) is the same value as just plain V.
It can't be represented by any symbol.Another Answer:-The symbol for zero as a Roman numeral is N but it is never needed because the positional place value of Roman numerals are self evident.
64 in Roman numerals is LXIV
c - cc = -c
Roman numerals don't have a 0 symbol and so it is an invalid arrangement of Roman numerals