First, we will write MMMDCCLIII and DXXVI in numbers, i.e. DXXVI = 526 and MMMDCCLIII = 3753. Now, 3753 - 526 = 3227. And, 3227 = MMMCCXXVII. Therefore, MMMCCXXVII should be added to 526 roman numerals to get MMMDCCLIII. Why is 526 Written in Roman Numerals as DXXVI? We ...