What is 20 of 22

What is 20 of 22

Input
20/22
Exact result
10/11
Decimal approximation
0.909090909090909090909090909090909090909090909090909090909…
Repeating decimal
0.90^_ (period 2)
Percentage
90.91%
Prime factorization
2×5×11^(-1)
Continued fraction
[0; 1, 10]
Egyptian fraction expansion
1/2 + 1/3 + 1/14 + 1/231
Occurrence in convergents
e/3~~0, 1, 9/10, 10/11, 19/21, 29/32, …
(simple continued fraction convergent sequence)

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