Assuming this is a Single Member LLC that has NOT made an election to be taxed as a corporation, just ignore the LLC for income tax purposes.
You report your rentals on Schedule E. Under the rental properties, you depreciate the equipment by using the business percentage that applies to the rental property.
You also seem to have a new business of excavation and snow removal. That business goes on Schedule C. You depreciate the equipment by using the business percentage that applies to the excavation/snow removal business.
