They mean: V = 5 and IV = 4 respectively
4 and 5 in Roman numerals are IV and V, respectively.
IV + I = V
In Roman numerals, V = 5. IV is one before five, that is, four.
IV is already in Roman numerals! I presume you mean in Indian/Arabic numerals.I = 1 V = 5 so IV is one before five = 4
IX = 9
4 and 5 in Roman numerals are IV and V, respectively.
IV + I = V
In Roman numerals, V = 5. IV is one before five, that is, four.
Roman numerals: 5 = V 4 = IV 1 = I I + V = IV.
IV is already in Roman numerals! I presume you mean in Indian/Arabic numerals.I = 1 V = 5 so IV is one before five = 4
IX = 9
IV is the roman numerals equivalent of the number 4. It "means" one less than five.
IV-V-MMIV
It is: IV-V-MMXII
Iv/v/mmix
IV-V-MM
The date of birth 05041971 in Roman numerals is V.IV.MCMLXXI.