This is funny… a while ago, the following image was posted to Reddit with the title “Now, I’m no math expert, but I think Reddit’s a little confused.“

Clearly the math works out as 6 people up voted, 3 people down voted and 9 votes total were cast.
Thus, 66/% were up votes (like it).
Another math fail on reddit from a year ago had the title “User verification fail” linking to the following image:

The number ending in 5 is the odd number. Adding the digits usually only helps if you want to see if a number is divisible by 3.