If a thread of length 22units can be divided in 7
If a thread of length 22units can be divided in 7 parts then why it is not exactly divided when divided manually i mean in normal mathematic , why it is irrational like other no. The same experiment applies for all other irrational no .
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Answers & Comments
It's all due to the "base" in which you count,
and your definition of "exactly" divided,
right down to each of the 7 pieces being the *SAME* number of atomic particles, placed end-to-end.
If you used "base-seven", then 22 (base-ten) would be written as 31 (base-seven). So, 31 (base-seven) divided by 7 (base-7) would be '3.1' (3 times 1*7**0 + 1/7**1), where '3.1' (base-seven) is *NOT* an irrational number.