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

### Instruction:
James has 28 marbles.  He puts them into 4 bags.  He puts the same number in each bag.  He then gives one bag away.  How many marbles does James have left?

### Response:
 เจมส์มีลูกแก้ว 28 ลูก / 4 ถุง = <<28/4=7>>7 ลูกแก้วต่อถุง
เจมส์เหลือลูกแก้ว 28 ลูก - 7 ลูกแก้ว = <<28-7=21>>21 ลูกแก้ว.