1099-K Milage Deduction

DoorDash and Grubhub both sent a 1099-NEC; however, Uber sent a 1099-K. I am able to deduct milage on the 1099-NEC forms in the Schedule C but can't figure out how to enter my miles to deduct them on the 1099-K. I am using the TurboTax Deluxe desktop app if that helps. Thanks!