![]() Sometimes when dealing with large Roman numeral numbers such as this, and especially when there is a subtraction needed, it can sometimes be easier for you to work it out if you split the equation into two or more parts. Want to understand the whole sum? It’s:ĭ (500) – C (100) plus L (50) plus X (10) plus X (10) plus X (10) plus V (5) plus I (1). Now that we know that LIV = 54, and we know that IX = 9, we simply multiply the two together to get the rather large number of 486. LIV is L (50) plus V (5) minus I (1)… remember the subtractive principle because I comes before V! So, LIV = 50 + 5 – 1 which equals 54. IX (9) multiplied by III (3) equals 27 (or XXVII in Roman numerals).Ī slightly trickier multiplication equation, but very similar to the one above once you know what LIV is in Roman numerals. So taking IX (9) from XI (11) gives us the answer of 2 (or II in Roman numerals).Ī simple multiplication sum this one. We saw earlier that XI is equal to the number 11 because it is X (10) plus I (1). This palindrome equation would be slightly more difficult if we hadn’t already shown above what number XI translated as! Notice that 14 is not written as XIIII, as the number 4 in Roman numerals is IV, which again uses the subtractive principle that we use for working out the number for IX. So the answer is 5 + 9, which equals 14 (or XIV in Roman numerals). ![]() We already know from above that the Roman numerals IX = 9, so all we have to do to solve this question is add 9 to the number represented by V, which is 5. Why not have a go at solving some of the math equations below which each contain the Roman number for 9, IX, in them somewhere? Math Questions Containing the Roman Numerals IX So in this example, XI in Roman numerals would equate to X + I, or 10 + 1, which equals 11. If the I was written after the X, the two numbers would be added together, as the smaller number has come after the bigger one. ![]() So even though it is written as IX, the whole equation works out as: IX in Roman numerals equals the number 9.Īs can be seen on our main Roman numerals page under the heading “The Subtractive Principle”, because the smaller number (in this case I which equals 1), is written before the larger number (in this case X which equals 10), then the smaller number is taken away from the bigger number.
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