perplexus.info :: Numbers : co-prime unit fractions

co-prime unit fractions (Posted on 2020-03-06)

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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Subject	Author	Date
proof it's square	xdog	2020-03-09 13:03:49
re(2): Possible solution, first posting	broll	2020-03-08 13:33:48
re: Possible solution, first posting	xdog	2020-03-08 12:38:48
Possible solution	broll	2020-03-07 22:46:30
Possible solution	broll	2020-03-07 22:46:27
re: a solution	tomarken	2020-03-06 10:03:30
a solution	xdog	2020-03-06 09:38:41

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