SFR derived using the total radio flux measured at 6″ resolution versus the SFR derived from SED fitting. The blue points have been derived using Eq. (3). The purple error bars show the SFRs when only the contribution from radio components on scales <6″ is subtracted (SMM IDs 3a, 12a, 47a, and 55a), and the blue error bars show the SFRs when the radio AGN contribution is subtracted as well (SMM IDs 15, 16, 24, 29, 47a, 55a, and 77). For SMGs 47a and 55a, the blue error bars take the sum of the two contributions into account. The black line is the 1:1 line where the SFRs derived from the two methods are equal.