÷

The division-minus sign is a dash (commonly horizontal) between two dots, that is used for both subtraction and division. Its use for subtraction is visually more distinct from a hyphen than is the anglophone minus sign ⟨−⟩. In some scribal traditions, in its use as a minus sign it is set at an angle, ⟨⁒⟩ (commercial minus sign).

÷

1. (mathematics, especially Anglophone countries) division

   Synonyms: /, :

   6 ÷ 2 = 3

   • 2009, Blair Madore, GRE Math Workbook (in English), Barron's Educational Series, →ISBN, page 73:

     Since decimal numbers are based on powers of ten it is extremely easy to multiply or divide by 10ⁿ, where n is a positive integer. To multiply a number by 10ⁿ, just move the decimal place n places to the right. For example, 24.345 × 10² = 2,434.5. […] To divide a number by 10ⁿ, just move the decimal place n places to the left. For example, 24.345 ÷ 10² = 0.23345.

2. (mathematics, non-Anglophone countries) negative, minus

   Synonym: −

   ÷50% (meaning a 50% reduction)

3. (editorial mark) Alternative form of ⸓ (obelus)

• ×
• +

•   Division sign on Wikipedia.Wikipedia
•   Commercial minus sign on Wikipedia.Wikipedia

÷

1. (Medieval Latin) Scribal abbreviation of est; third-person singular present active indicative of sum
   • 845, St. Gall Priscian Glosses, Irish manuscript of Priscianus Caesariensis, Institutiones Grammaticae (526–527), De Oratione

     Oratio÷ ordinatio dictionũ ↄgrua sententiã p̛fectã demonstrans.

     A sentence is a coherent arrangement of words showing a complete thought.