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

### Instruction:
 特伦特捉到了180只蝌蚪，然后放走了其中的75%。他留下了多少只？


### Response:
 他首先捉到了180只蝌蚪，然后放走了其中的75/100 * 180只蝌蚪 = <<180*75/100=135>>135只蝌蚪。
剩下的蝌蚪数量为180只蝌蚪 - 135只蝌蚪 = <<180-135=45>>45只蝌蚪。