15,3:5

Could you clarify how you mean the expression? in many locales, comma is a decimal separator and colon can mean division or a ratio.

Here are the two common interpretations and results:

• If it means 15.3 ÷ 5:

  • 15.3 ÷ 5 = 3.06

• If it means the ratio 15.3 : 5:

  • Remove the decimal: 153 : 50
  • This is already in simplest integer form; as a ratio it’s 153:50, which is equivalent to 3.06 : 1 (or 3.06 as a decimal).

If you intended a different interpretation (e.g., 15,3/5 or something else), tell me and I’ll compute that.