Prove or disprove the following statement:
Each positive rational number can be written in the form:
(a^2+b^3)/(c^5+d^7)
where a,b,c,d are positive integers.
(In reply to
re(2): Question? by Salil)
The way I looked at it there are four degrees of freedom in the given expression, which could very well be enough, given that the fractions need not be in simplest (reduced) form.

Posted by Charlie
on 20130405 09:28:17 