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

### Instruction:
Bob, Tom, Sally, and Jerry had dinner at their favorite pizzeria. They decide to share 2 pizzas. Bob ate half of a pizza on his own. Tom ate one-third of a pizza. Sally wasn't very hungry and only ate one-sixth of a pizza, and Jerry ate a quarter of a pizza. If each pizza is cut into 12 slices, how many slices were left over?

### Response:
 Kila pizza ina vipande 12. Bob alikula vipande 12 / 2 = <<12/2=6>>6.
Tom alikula theluthi moja, au vipande 12 / 3 = <<12/3=4>>4.
Sally alikula sita, au vipande 12 / 6 = <<12/6=2>>2.
Jerry alikula robo, au vipande 12 / 4 = <<12/4=3>>3.
Jumla, walikula vipande 6 + 4 + 2 + 3 = <<6+4+2+3=15>>15.
Walioagiza pizza 2, hivyo jumla ya vipande vilivyosalia ni vipande 12 kwa pizza * 2 pizza = <<2*12=24>>24 vipande.
Walibakiwa na vipande 24 - 15 = <<24-15=9>>9 vipande.