In how many different ways can 2/15 be represented as 1/a + 1/b, if a and b are positive integers with a ≥ b?
Not sure I understand. Do you mean like 1/15 + 1/15
or 2/30 + 2/30
or 4/60 + 4/60 ? You could go on forever.
In how many different ways can \(\dfrac{2}{15}\) be represented as \(\dfrac1a + \dfrac1b\), if a and b are positive integers with \(a \ge b\)?
My answer see here: https://web2.0calc.com/questions/in-how-many-different-ways-can-2-15-be-represented#r2