1. A rational number is a number that can be expressed as a fraction, while an irrational number cannot be expressed as a fraction.
2. A rational number is a whole number, while an irrational number is a decimal number.
3. A rational number is a positive number, while an irrational number is a negative number.
4. A rational number is a real number, while an irrational number is an imaginary number.
Which context describes a difference of rational numbers?(1 point)
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