How to combine two materials and create a new material in Ansys Workbench.

Please consider the following situation.
I have created two materials namely X and Y. I want to create a new material from these two material in which the material X contributes 40% and the material Y contributes to the 60% for the new material created.
In other words, X(40%)+Y(60%) = Z.
Is this possible, please help me out if so.