&gt; "and" for the decimal point???

The way my grade school teacher taught it was like this, you didn't use "and" except for fractional parts, at least when writing out a number (I don't remember if saying it aloud followed the same rule, I definitely say it, I'm pretty sure).

So like "one hundred nine *and* three-fourths" but not "one hundred and nine and three-fourths"

I have no idea if that's based on some style guide or what, just saying that at least some people were probably raised/taught that way, and some subset of those people are bound to be pedantic redditors ¯\\\_(ツ)\_/¯