Answer:LXIIIStep-by-step explanation:Let’s subtract the two Roman numerals:Given: CCXXII = 222 [100 + 100 + 10 + 10 + 1 + 1 = 222] CLIX = 159 [100 + 50 + 9 = 159][C= 100, L = 50, X = 10, I = 1, IX = 9]Step 1: Subtract the values222 − 159 = 63Step 2: Convert 63 to Roman numerals60 = LX3 = III63 = 63 = LXIII