Answer:
real number, rational number, decimal number
Explanation:
1. Rational Number: 12/5 is a rational number because it can be expressed as a fraction of two integers
2. When 12 is divided by 5, you get a decimal value of 2.4. Therefore, 12/5 can be represented as a decimal number
3. 12/5 is a real number because it lies on the real number line