Can i file home office deductions for both W2 and K1 business income earned using the same office?

I have a full time job (W2 income) and work almost exclusively from home (i reside in new york but my job is in illinois, even though i spend little time there). I also started an LLC in 2015 and received K-1 income from this. I have no office for this business and so work exclusively from home. I only have 1 home office that i use for both the W2 job and the business. How do i declare a home office expense for both? can i?