Measurements of $t\overline{t}$+X in ATLAS and CMS

We summarize the recent results from the ATLAS and CMS collaborations on the measurements of the cross sections of $\mathrm{t}\bar{\mathrm{t}}+\mathrm{W}$, $\mathrm{t}\bar{\mathrm{t}}+\mathrm{Z}$, $\mathrm{t}\bar{\mathrm{t}}+\gamma$, and $\mathrm{t}\bar{\mathrm{t}}\mathrm{b}\bar{\mathrm{b}}$ processes using data collected in proton-proton collisions at the LHC at $\sqrt{s}=$ 8 and 13 TeV.