John Randall wrote: > ITEM 54 (Salamin & Gosper): > The probability that a random rational number has an even denominator is > 1/3. >
One more argument, possibly what was intended. Let p and q be random positive integers. Write them in binary, and remove common trailing zeros. The possibilities on the last bit are now 1/1, 0/1, 1/0, and only the last case gives an even denominator for the reduced fraction p/q. Best wishes, John ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
