Earlier quoted context omitted.
I don’t remember us getting to fractions in kindergarten, but maybe the curriculum has radically changed since the early 70s. What exactly is the lie? 1/4 and 3/8 equals 5/8. Is there’s something more to that? Is that fundamentally wrong?
> Is there’s something more to that? Yes: this is about building the quotient field (field of fractions) [1] for some integral domain, or more generally, building the localization ([2], [3]) of a commutative ring with respect to some given set that is closed under multiplication (the special case of the quotient field for a ring R is obtained when one chooses R\{0} as such a set). -- [1] https://en.wikipedia.org/w/in…
Lies to children are like... time-reversal symmetry.