Stock Split - Impact on Pies

Say I have two pies. Pie A , Pie B.
In Pie A, I have 0.75 APPL stocks. In Pie B, I have 0.25 APPL stocks.
In total, I have 1 whole APPL stock.

Once the Split happens, how will it be handled ?

Hope someone from T212 can provide an official answer on this.

Thank you!