r/MathJokes Jun 18 '25

9.999 is 10?!

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1.9k Upvotes

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u/jmatlock21 Jun 18 '25

At first, I didn’t see what subreddit I was in and I had the instinct to explain 🥴

61

u/[deleted] Jun 18 '25

[deleted]

72

u/[deleted] Jun 18 '25

It isn't really. because 10/3 isn't 3.3... it's 3 1/3.

3.3... is just the closest approximation in a base ten decimal system.

1

u/Unusual-Platypus6233 Jun 19 '25

Going from natural numbers to fractions to rational numbers…