Below is an instruction that describes a task. Write a response that appropriately completes the request in French. Please answer in French.

### Instruction:
 Alex has 2 cakes that are each cut into 8 slices. A fourth of the slices are given away to his friends. A third of the remaining slices are given away to his family. Alex eats 3 slices. How many slices of the cake are left?


### Response:
 Il y a un total de 2*8 = <<2*8=16>>16 tranches de gâteau.
Un quart des tranches est donné, donc il reste 16-4 = <<16-4=12>>12 tranches.
Alex mange 3 tranches, il reste donc 12-3 = <<12-3=9>>9 tranches.
Un tiers des tranches restantes est donné, donc il reste 9-4 = <<9-4=5>>5 tranches.