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

### Instruction:
Stephen has 110 ants in his ant farm.  Half of the ants are worker ants, 20 percent of the worker ants are male.  How many female worker ants are there?

### Response:
 มดงาน: 110/2 = <<110/2=55>>55 ตัว
มดงานเพศผู้: 55(.20) = 11 ตัว
มีมดงานเพศเมีย 55-11 = <<55-11=44>>44 ตัว