How do you add 14 19 28 and 49 using Roman numerals?

Answer 1

Irrespective of today's modern notation of Roman numerals inasmuch that there is evidence to suggest that the Romans in the past would have calculated the equivalent of the Hindu-Arabic numerals of 14, 19, 28 as in the following formats:-

IXV+IXX = XXXIII (15-1)+(20-1) = (33)

XXXIII+IIXXX = LXI (33)+(30-2) = (61)

LXI+IL = CX (61)+(50-1) = (110)

Alternatively:-

XIIII+XVIIII = XXXIII (14)+(19) = (33)

XXXIII+XXVIII = LXI (33)+(28) = (61)

LXI+XXXXVIIII = CX (61)+(49) = (110)

QED