2:0

Could you clarify what you mean by "2:0"? Here are the main possibilities:

• As a ratio (a:b): You can simplify 2:0 by gcd(2,0)=2 to 1:0. This is a degenerate ratio indicating the second quantity is zero.
• As a fraction a/b: 2/0 is undefined (division by zero).

If you had a specific problem or context (e.g., linearly solving a ratio problem, a geometry/probability question, or a scoreline), please share the full details and I’ll help you solve it.