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

### Instruction:
Dean ordered 2 large pizzas that were each cut into 12 slices.  His friends Frank and Sammy came over to enjoy some pizza and watch a movie.  Dean was hungry and ate half of the Hawaiian pizza.  Frank only ate 3 slices of Hawaiian pizza and Sammy ate a third of the cheese pizza.  How many total slices were left over?

### Response:
 Dean alinunua pizza 2 ambazo kila moja ilikuwa na vipande 12 kwa jumla ya vipande 2*12 = <<2*12=24>>24
Aliyala nusu ya pizza yenye vipande 12 hivyo 12/2 = <<12/2=6>>6 vipande vilibaki
Sammy alikula 1/3 ya pizza yenye vipande 12 hivyo 12/3 = <<12/3=4>>4 vipande vilibaki
Dean alikula vipande 6, Sammy alikula 4 na Frank alikula 3 hivyo 6+4+3 = <<6+4+3=13>>13
Walikuwa na vipande 24 mwanzoni na vipande 13 hivyo 24-13 = <<24-13=11>>11 vipande vilibaki