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co-prime unit fractions (Posted on 2020-03-06) Difficulty: 3 of 5
There are 3 positive integers a, b, c such that 1/c=1/a+1/b. If the greatest common divisor of a, b, c is 1, then what type of number must a+b be(e.g square number, cube number, triangular number...)?

No Solution Yet Submitted by Danish Ahmed Khan    
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Comments: ( You must be logged in to post comments.)
  Subject Author Date
proof it's squarexdog2020-03-09 13:03:49
re(2): Possible solution, first postingbroll2020-03-08 13:33:48
re: Possible solution, first postingxdog2020-03-08 12:38:48
Possible solutionbroll2020-03-07 22:46:30
Possible solutionbroll2020-03-07 22:46:27
Hints/Tipsre: a solutiontomarken2020-03-06 10:03:30
a solutionxdog2020-03-06 09:38:41
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