FTCE General Knowledge Math Practice Test

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Study for the FTCE General Knowledge Math Test. Boost your confidence with engaging flashcards and multiple-choice questions, featuring hints and explanations. Prepare thoroughly to excel in your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which type of numbers cannot be expressed as the ratio of two integers?

Irrational numbers
Rational numbers
Natural numbers
Whole numbers

The correct answer is: Irrational numbers

Irrational numbers cannot be expressed as the ratio of two integers. This type of number includes those that have non-repeating, non-terminating decimal expansions. Examples include numbers like the square root of 2 or pi. These cannot be accurately represented as a fraction of two integers and thus fall outside the category of rational numbers. On the other hand, rational numbers are defined as numbers that can indeed be expressed as a ratio of two integers. Natural numbers and whole numbers are also types of rational numbers since they can be represented as a fraction (e.g., the natural number 5 can be written as 5/1). Hence, the defining characteristic of irrational numbers is what distinguishes them from the other options provided.