Properties Of Triangles

In a triangle \(\mathrm{ABC}\), with usual notations \(\mathrm{a}=2, \mathrm{~b}=3, \mathrm{c}=5\), then \(\frac{\cos \mathrm{A}}{\mathrm{a}}+\frac{\cos \mathrm{B}}{\mathrm{b}}+\frac{\cos \mathrm{C}}{\mathrm{c}}=\)