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XLV to 45

Convert Roman numeral XLV to Arabic number 45

Conversion Result
XLV
= 45

Conversion Breakdown

Roman numeral: XLV

Arabic number: 45

Breakdown: XL (40) + V (5)

Roman Numeral Rules

Additive Rule: When a smaller or equal value follows a larger value, add them together. For example, VI = 5 + 1 = 6.

Subtractive Rule: When a smaller value appears before a larger value, subtract the smaller from the larger. For example, IV = 5 - 1 = 4.

Repetition Rule: Symbols can be repeated up to three times in succession. For example, III = 3, but 4 is written as IV, not IIII.