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Results tagged with formation-of-numbers
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user 55735
For puzzles about forming numbers using other numbers and mathematical operations. Use with [mathematics]. Puzzles using this tag should carefully specify the allowed operations.
25
votes
2
answers
748
views
The mysterious operation $\oplus$
We are given an operation $\oplus$ that is associative and commutative, has $0$ as a neutral element, and we know:
$1/10 \oplus 1/6 = 5/29$
$1/6 \oplus 2/3 = 7/10 $
$1/5 \oplus 2/5 = 3/7 $
$1/4 \op …
