Final answer:
Rational numbers can be expressed as fractions while irrational numbers cannot be expressed as fractions.
Step-by-step explanation:
Rational numbers are numbers that can be expressed as a fraction, or a ratio of two integers. For example, 3.14 can be expressed as the fraction 314/100. Irrational numbers, on the other hand, cannot be expressed as a fraction and their decimal representation goes on forever without repeating, like the number π.
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