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  1. Irrational Numbers - Math is Fun

    Because it's an irrational number. An Irrational Number is a real number that cannot be written as a simple fraction: 1.5 is rational, but π is irrational. Let's look at what makes a number rational …

  2. Irrational number - Wikipedia

    In mathematics, the irrational numbers are all the real numbers that are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers.

  3. Irrational Numbers - Definition, Examples | Rational and

    What is the Definition of Irrational Numbers in Math? Irrational numbers are a set of real numbers that cannot be expressed in the form of fractions or ratios made up of integers.

  4. Irrational Numbers- Definition, Examples, Symbol, Properties

    Jul 23, 2025 · Irrational numbers are real numbers that cannot be expressed as fractions. Learn about their definition, difference between rational and irrational numbers, properties, and …

  5. Irrational number | Definition, Examples, & Facts | Britannica

    Nov 21, 2025 · Irrational number, any real number that cannot be expressed as the quotient of two integers—that is, p/q, where p and q are both integers. For example, there is no number …

  6. BYJU'S Online learning Programs For K3, K10, K12, NEET, JEE, UPSC ...

    An irrational number is a real number that cannot be expressed as a ratio of integers; for example, √2 is an irrational number. We cannot express any irrational number in the form of a ratio, …

  7. Irrational Numbers: Definition & Examples - Statistics by Jim

    Irrational Numbers Definition If someone asks, “What is an irrational number?” you can say: It’s a number that you can’t write as a fraction, and its decimal goes on forever without repeating. In …

  8. Rational and Irrational Numbers -Differences & Examples

    Dec 23, 2023 · Irrational Numbers cannot be written as a ratio. In simple words, irrational numbers include numbers that cannot be simplified further (to fractions with natural numbers …

  9. IRRATIONAL NUMBER Definition & Meaning - Merriam-Webster

    The meaning of IRRATIONAL NUMBER is a number that can be expressed as an infinite decimal with no set of consecutive digits repeating itself indefinitely and that cannot be expressed as …

  10. IRRATIONAL NUMBER | English meaning - Cambridge Dictionary

    Thus, for example, an irrational number is the limit of different fractions which have values approaching it more and more. Incidentally, this "irrational flow on a torus," where 1 /2 is an …