How should a normal blood-pressure reading be recorded?
36.9/80 ∘C36.9/80\,{}^\circ\mathrm{C}36.9/80∘C
120+80 mmHg120+80\,\mathrm{mmHg}120+80mmHg
80/120 bpm80/120\,\mathrm{bpm}80/120bpm
120/80 mmHg120/80\,\mathrm{mmHg}120/80mmHg