We know that 30/3=10, therefore 30/3 could be written as 10×3/3=3.333.....×3=9.9999........ Which is approximately equal to 10 but not exactly 10. Why this kind of approximation errors happen ?
2026-03-25 20:09:35.1774469375
approximation problem
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Actually, 10 and 9.99999... are exactly the same number. This is the issue of the non-uniqueness of decimal representation of numbers.