you write 71 as LXXl and 20 as XX
To write 20 in Roman numerals, you would use XX. To write 30, you would use XXX. Therefore, to write 20-30 in Roman numerals, you would write XX-XXX.
II.XX.MMI
It is: I-XX-MMI
I-XX-MMIX
you write 71 as LXXl and 20 as XX
XX is 20 in Roman numerals
II.XX.MMI
It is: I-XX-MMI
I-XX-MMIX
They are the same as Roman numerals and today they are expressed from 1 to 20 as follows in lower case format:- i ii iii iv v vi vii viii ix x xi xii xiii xiv xv xvi xvii xviii and xix The way we write out Roman numerals today differs in many respects to how the ancient Romans actually did themselves.
Xii-12 xx-20 mcmxc-1990
V-XX-MMX
X-XX-MMIII
83 = LXXXIII or as XXCIII (103-20)
Due to rules made during the Middle Ages, today we write out 19 in Roman numerals as XIX. But the Romans themselves would have probably wrote out 19 as XVIIII and then simplified it to IXX. In fact the Latin word for 19 is "undeviginti" which literally means one from twenty. Hence: IXX*IXX = -I*IXX + XX*IXX = +I-XX-XX+CCCC = CCCLXI (361) In Hindu-Arabic numerals: -1(-1+20) + 20(-1+20) = +1-20-20+400 = 361
It is: VIII-XX-MMVII