# Joke : Prove that 6 = 8.5 →

## by Zi Song Yeoh 13, Malaysia 1 year ago

What is $6$ in English? It is six. But what about six in numerals? You might say : "Of course its $6$!". Yes, but it is also $8.5$ ! If you didn't believe me, write $8.5$ in Roman numerals and you'll get SIX!

Thus, we get $6 = 8.5$!

Note : For those who are not familiar to Roman Numerals, $S = \frac {1}{2} = 0.5, I = 1, X = 10$, and so $SIX = 10 - 1 - 0.5 = 8.5$

See this for more details on fractions in Roman Numerals

For those who don't know why $S = \frac {1}{2} = 0.5, I = 1, X = 10 \Rightarrow SIX = 8.5$ :

Note that $IV = 4$, but $V = 5, I = 1$, so $IV = V - I = 4$, and so similarly $SIX = X - I - S = 8.5$.