LXX
50 + 20 = 70
LXX breaks down as L + XX (L = 50, XX = 20), which add up to 70.
LXX breaks down as L + XX (L = 50, XX = 20), which add up to 70.
The number 70 is written LXX in Roman numerals. Roman numerals use seven letters — I (1), V (5), X (10), L (50), C (100), D (500) and M (1000) — combined from largest to smallest, with subtractive pairs such as IV (4) and IX (9). Need another number? Use the Roman numeral converter or see the 1–100 chart.