nostr:npub1k4qmle0sq0u0fwfz8l7zr85j3ag07z0v3lzj7xrkz5v6sfxdd00ss73lsq For me, the significant detail there isn't the division sign, it's the implicit multiplication next to the brackets, which seems like a stronger grouping than an operator sign.
Like, if it was 6 ÷ 2 × (1+2), I could read that as three equal operands, which get grouped in order into (6/2) × (1+2) = 9. (Although it's still better to have explicit brackets if that's what you mean!)
But when it's written as 6 ÷ 2(1+2), I'd definitely read that as 6/(2*(1+2)) = 1.