A father left 102 goats to his three sons. He promised 1/2 of the goats to the oldest son, 1/5 to the middle son, and 1/13 to the youngest son (maybe step son :) ). But the sons could not divide 102 evenly. Then they call their uncle, after thinking a while the uncle come with a solution, and as thanks they give the uncle 1 goat.
What is the uncle solution ?
Note : This puzzle is similiar with the sheikh dies but not duplicate since the problem has different number of animals, and the problem solver (the uncle) receive a present as thanks. (the problem solver in the sheikh dies puzzle do not receive present)