Nowadays we would convert the equivalent of the above numbers into Roman numerals as XVIII, XLIX, MCMXCIX and XCIX respectively which makes them a complete mathematical endurance to add them up.
But in days gone by there exist substancial evidence to suggest that the ancient Romans would have probably added together the equivalent of the aforementioned numbers in either of the following formats:-
IIXX+IL = LXVII => (20-2)+(50-1) = 67
LXVII+IMM = MMLXVI => 67+(2000-1) = 2066
MMLXVI+IC = MMCLXV => 2066+(100-1) = 2165
Alternatively:-
XVIII+XXXXVIIII = LXVII => 18+49 = 67
LXVII+MDCCCCLXXXXVIIII = MMLXVI => 67+1999 = 2066
MMLXVI+LXXXXVIIII = MMCLXV => 2066+99 = 2165
QED
See answer to question: ' How do you add together 1666 and 1999 in two different ways using Roman numerals'
The wrong way and the right way which is as follows:- IX+IXX = XXVIII => (10-1)+(20-1) = 28 XXVIII+IMM = MMXXVII => 28+(2000-1) = 2027
MIM + MMXIV = MMMXIII or MMCXCIX + MMXIII = MMMXIII There is only one way to write the solution (3013)
Cmxcix + xiv + mcmlxxxvii = mmm. It should be all in capital letters, but the system changed them.
I would add 1999 and 51 together, getting 2050, and convert that to Roman numerals (MML) and hope that was one of the two possible methods.
Notwithstanding todays modern conversion of 1999 and 14 into Roman numerals which are MCMXCIX and XIV respectively inasmuch that there exist credible evidence to suggest that the ancient Romans would have added together the equivalent of 1999 and 14 in either of the following formats:- A: IMM+IXV = MMXIII => (2000-1)+(15-1) = 2013 B: MDCCCCLXXXXVIIII+XIIII = MMXIII => 1999+14 = 2013 Not that for more complicated calculations the ancient Romans would have used an abacus calculating device.
Because of changes made to the configuration of Roman numerals in the Middle Ages nowadays we would express 19 in Roman numerals as XIX but the ancient Romans would have probably expressed the equivalent of 19 as XVIIII or as IXX thus facilitating addition in either of the following formats-1: MDCCLXXVI+XVIIII = MDCCLXXXXV => 1776+19 = 17952: MDCCLXXVI+IXX = MDCCLXXXXV => 1776+(20-1) = 1795Note that in todays configuration of Roman numerals 1776+19 = MDCCXCVThe Latin words for XVIIII and IXX are 'novemdecim' and 'undeviginti' respectively but there is no Latin word for the equivalent of XIX.QED
The word "altogether" (completely, entirely) has a different meaning from "all together" (a collected group).
When in Rome do as the Roman do and the ancient Romans would have probably added together 1999 and 3001 in either of the following ways:- IMM+MMMI = (V) => (2000-1)+3001 = 1000*5 = 5000 MDCCCCLXXXXVIIII+MMMI = (V) => 1999+30001 = 5000 Note that in todays modern configuration of Roman numerals 1999 is now considered to be MCMXCIX
To add 777 and 999 in Roman numerals, you can first convert the numbers to their Roman numeral equivalents. 777 is DCCCLXXVII and 999 is CMXCIX. Method 1: Add the two Roman numerals: DCCCLXXVII + CMXCIX = MDCCC LXXVI Method 2: Convert both numbers to their Arabic numeral equivalents, add them together, and then convert the sum back to Roman numerals: 777 + 999 = 1776, which can be written as MDCCLXXVI in Roman numerals.
Notwithstanding todays modern conversion of 999 into Roman numerals which are CMXCIX inasmuch that the ancient Romans in all probability would have added together the equivalent of 666 and 999 in either of the following formats:-A: DCLXVI+IM = MDCLXV => 666+(1000-1) = 1665B: DCLXVI+DCCCCLXXXXVIIII = MDCLXV => 666+999 = 1665QED
Convert from Roman numerals to Arabic numerals, add, convert back to Roman numerals.