What does this dimension (see image), and particularly the divide symbol in it, mean please? I'm not a mechanical engineer and couldn't find the answer by searching for terms with the word "divide" in them.
If it makes any difference, I guess the drawing was done by a German engineer, as it's one of the dimensions given for a worktop cut-out for a Bosch gas hob.
Obviously it doesn't actually mean "divide" as that would result in <1 mm. Could it mean a range? So that this dimension of the cut-out can be between 480 and 492 mm after the tolerance is included?