In ancient Rome the numerals of VL would have been perfectly acceptable as being the equivalent of 45.
But the real rules governing the original Roman numeral system were changed during the Middle Ages and as a result the equivalent of 45 in Roman numerals today is considered to be XLV.
Vl
VL = 45 but in today's notation it is written out as XLV
45 but under today's notation of Roman numerals it is written out as XLV
Incorrect usage
June 26 = 06/26 = VI / XXVI
Vl
VL = 45 but in today's notation it is written out as XLV
45 but under today's notation of Roman numerals it is written out as XLV
Incorrect usage
June 26 = 06/26 = VI / XXVI
The Romans themselves would have probably notated 45 as VL but the rules governing today's Roman numeral system, which were introduced during the Middle Ages, gives 45 as XLV in Roman numerals.
Incorrect Roman number. If you meant LVII then it would be 57.
MIM is an incorrect way of writing 1999 in roman numerals. 1999 should be written MCMXCIX.
VL is not a valid Roman numeral.
That is an incorrect number. MCMXLVI would 1946.
It appears to be an incorrect arrangement of Roman numerals. IIVIXI does not represent a valid Roman numeral.
IX = 9. 11 is XI in Roman Numerals.