Question 252970
Well if 'a' and 'b' are both integers, then ab ('a' times 'b') is also an integer because the product of two integers is always an integer. Because {{{1/ab=1}}}, this means that {{{1=ab}}} if we multiply both sides by ab. Since 1 is the only factor of 1, this tells us that 1=1*1 and that a=1 and b=1.



So if 'a' and 'b' are both positive integers and {{{1/a+1/b=1/ab=1}}}, then {{{a=1}}}, {{{b=1}}}, and {{{ab=1}}}



So either there's a typo somewhere or you copied the problem incorrectly. Please double check the problem.