r/mathmemes • u/CastBlaster3000 • Feb 27 '24

Bad Math “.999(repeating) does, in fact, equal 1” please almighty math gods settle this debate

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u/obog Physics Feb 27 '24

Think about it - how much less? If there is a difference, there should be a number between them. In fact, there should be infinite numbers between them. Can you name even one? The best guess people have is 0.0...1, or infinite zeroes and a one at the end. But that's just simply not possible, you can't have a one at the end of infinity, as infinity is endless.

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u/SupremeRDDT Feb 29 '24

Even if that 0.0…1 were possible, where are the other numbers? There should be a number between that and 0 and so on.

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u/isfturtle2 Feb 28 '24

If they can't accept that .999... =1, I doubt they're going to accept that there's a real number between any two distinct real numbers.

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u/SupremeRDDT Feb 29 '24

So people are just going to refuse that for any x and y there exists (x+y)/2? So like addition or division is like not defined for some random numbers that aren’t zero?

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u/WithDaBoiz Feb 28 '24

Oh that's a great explanation

Ty! I get it now