# Greatest Integer Function

**Algebra**Level 5

\(x\) is a real number and satisfies the equation:

\( \frac{1}{[x]}+\frac{1}{[2x]}=x-[x]+\frac{1}{3}\).

The sum of all such numbers can be expressed as \(\frac{m}{n}\), where \(m\) and \(n\) are relatively prime positive integers. Find \(m+n\)

**Details and Assumptions**

\([x]\) denotes the **Greatest Integer Function**: \([x]=n\), where \(n\) is the greatest integer less than \(x\).