Greek Anthology Book XIV: Metrodorus: 128

Arithmetical Epigram of Metrodorus
What violence my brother has done me, dividing our father's fortune of five talents unjustly! Poor tearful I have this fifth part of the seven-elevenths of my brother's share. Zeus, thou sleepest sound.

Solution
Let $n$ be the narrator's share of the fortune.

We have that the brother's share is therefore $5 - n$.

Hence:

So the narrator has $\dfrac {35} {62}$ of a.

The brother, meanwhile, has $4 \frac {27} {62}$.