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math is hard (lemm.ee)

submitted 6 months ago by [email protected] to c/[email protected]

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[–] [email protected] 24 points 6 months ago (2 children)

It won’t keep you up if you just think of Divide as just multiplying by the fraction

[–] Sylvartas 5 points 6 months ago (1 children)

Yeah I was gonna comment that 0.25*(1/0.5) = 0.5 doesn't look nearly as weird

[–] [email protected] 8 points 6 months ago* (last edited 6 months ago) (1 children)

I didn’t specify fully, but I was just thinking 1/4 * 2/1

[–] Sylvartas 2 points 6 months ago

Imo, as soon as you write it as 0.25 multiplied by a fraction it works, because you can then easily see that it's the same as (1/4)*2

[–] [email protected] 4 points 6 months ago

The math looks perfectly fine. But when people phrase "half of a quarter" I think they have (1/2)*(1/4) in mind, instead of 0.25/0.5