Not strictly a scam, but there's a little money to be made creating viral content on Facebook. They receive a tiny portion of the ad revenue from Facebook when they generate engagement.

It's just Facebook sucking really.

OK, it's been a few hours. I'll do the clumsy thing that everyone else has avoided and point out that it's deliberately set up so that people who have never heard of operator precedence - those who do things purely left-to-right - don't get a weird fraction when the division step is done, making them think that the answer they've reached must be the right one. You'd still get a handful who'd argue regardless, but that whole number ropes in a whole bunch more.

Couple that with the fact that the value reached this way doesn't match the value obtained from using operator precedence and you get arguments about what the right answer is. And a comment like the one you're reading right now that's too long for the hard-of-thinking to read.

"More engagement, baybee [sunglasses smiley emoji] [cash bag emoji]" etc.

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