# ICSE Class 9 Maths Rational and Irrational Numbers

Mathematics is unlike any other subject consists of a series of chapters. In ICSEMathematics, there is no such thing as "less important" or "extremely significant" because the majority of the chapters are interlinked, making it a complete pack of informative units. ICSE class 9 MathsIrrational Numbers are real numbers that a ratio cannot represent. In other terms, irrational numbers are real numbers that are not rational numbers.

On the other hand, ICSE class 9 Maths Rational Numbersare any number defined in the form of a fraction p/q or ratio is called a rational number. In basic terms, rational numbers can be stated as a ratio (P/Q & Q0), but irrational numbers cannot be expressed as a fraction. ICSE class 9 Surds are values in the square root that cannot be reduced further into whole numbers or integers. Surds are irrational numbers. The examples of ICSE class 9 Surds are √2, √3, √5, etc., as these values cannot be further simplified.

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#### Rational Numbers

All the natural numbers, whole numbers and integers are included in rational numbers.

When a rational number is expressed as a decimal, then either the decimal will terminate or there will be a predictable pattern of digits.

Zero is neither positive nor negative

Rational numbers are the numbers of arithmetic: The whole numbers, fractions, mixed numbers, and decimals; together with their negative images.#### Irrational Numbers

A non-terminating repeating decimals are irrational numbers.

There are infinitely many rational and irrational numbers between two numbers.

An irrational number cannot be expressed in the p/q form.#### Surds

Surds

## ICSE Class 9 Textbook Solutions, Videos, Sample Papers & More

Students can practice ICSE Class 9 Maths Rational and Irrational Numbers Important Questions to enhance their problem-solving skills so that they can deal easily with difficult questions. ICSE Class 9 Maths Rational and Irrational Numbers MCQs will help students take a quick revision of the entire chapter and will make sure they cover every topic before their exams. ICSE Class 9 Maths Rational and Irrational Numbers True and False will make their fundamentals strong. Furthermore, students must take ICSE Class 9 Maths Rational and Irrational Short Answer Questions and ICSE Class 9 Maths Practice Test to know their preparation levels before their exams.

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