What does the numbers next to the price of the gas in the gas station means? Example. $3.85 9/10?

It means 9/10ths of a cent.

Check this too.

its going to round up if you get a percentage of a penny of gas. I think… Just a guess

What Allie said. It means in your example it’s basically $3.86 for a gallon of gas.

Can someone please explain why we deal in 9/10th of a cent. Like come on, just put 3.86

It’s a way for the gas corporations to make more money. The link I gave up above send you to an article. Somewhere between the middle ad the end it shows you just how much that 9/10ths of a cent equates to for the company.

That’s weird, here in Australia we too have an extra fraction of a cent, but here it is just added in decimal form, so in the example, $3.85 9/10 would be expressed as 385.9 cents.