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

### Instruction:
 莱克西想要跑3又1/4英里。在一个特定的室外跑道上，一圈是1/4英里。她需要跑多少圈？


### Response:
 在3英里中有3/1/4 = 12个四分之一英里。
所以，莱克西需要跑12（来自3英里）+ 1（来自1/4英里）= <<12+1=13>>13圈。