The Roman numeral for 90 is XC. In the Roman numbering system, when a smaller value (like X for 10) comes before a bigger one (C for 100), you subtract it. To represent 90 in Roman numerals, we use the subtractive principle, where a smaller numeral before a larger numeral indicates subtraction. In this case, X (10) is placed before C (100), meaning 10 is subtracted from 100 to equal 90.\u00a0<\/p>\n\n\n\n\n\n\n
To represent 90 in Roman numerals, we employ a clever technique called the subtractive principle. Instead of tediously writing \u201cLXXXX\u201d (50 + 10 + 10 + 10 + 10), we can simplify it by recognizing that 90 is essentially 10 less than 100. In Roman numerals, 100 is symbolised as \u201cC\u201d<\/strong><\/a> and 10 as \u201cX\u201d. By placing the smaller numeral \u201cX\u201d before the larger \u201cC,\u201d we indicate subtraction. Thus, 100 \u2013 10 is concisely expressed as \u201cXC\u201d. This efficient notation highlights the beauty and elegance of the Roman numeral system, allowing us to represent numbers with fewer symbols while maintaining clarity and precision.<\/p>\n\n\n\n Here\u2019s how we can apply this rule to 90:<\/p>\n\n\n\n Break down 90:<\/strong><\/p>\n\n\n\n 90 can be broken down into 100 \u2013 10.\u00a0\u00a0\u00a0<\/p>\n\n\n\n Convert to Roman Numerals:<\/strong><\/p>\n\n\n\n Apply the Subtraction Rule:<\/strong><\/p>\n\n\n\n Therefore, 90 in Roman numerals is written as XC.<\/em><\/strong><\/p>\n\n\n\n\n
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