Which term describes any number that cannot be expressed as a fraction?

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Multiple Choice

Which term describes any number that cannot be expressed as a fraction?

Explanation:
Irrational numbers are numbers that cannot be written as a ratio of two integers. That’s why this term is the best fit: numbers like pi or sqrt(2) cannot be expressed as a/b with integers a and b ≠ 0. Their decimal expansions go on forever without repeating, which helps distinguish them from rational numbers, whose decimals terminate or repeat. The other terms come from geometry and describe shapes or the way lines interact, not a classification of numbers, so they don’t apply here.

Irrational numbers are numbers that cannot be written as a ratio of two integers. That’s why this term is the best fit: numbers like pi or sqrt(2) cannot be expressed as a/b with integers a and b ≠ 0. Their decimal expansions go on forever without repeating, which helps distinguish them from rational numbers, whose decimals terminate or repeat. The other terms come from geometry and describe shapes or the way lines interact, not a classification of numbers, so they don’t apply here.

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