The smallest irrational number by which √18 should be multiplies so as to get a rational number is

An irrational number is a number that cannot be expressed as a simple fraction and its decimal form does not terminate or repeat. These numbers are non-recurring and non-terminating. Examples include square roots of non-perfect squares like √2 and √3 and special constants like π. Irrational numbers are essential in geometry and algebra. They expand the number system beyond rational numbers and help solve complex problems in mathematics and science.

Class 10 Maths Chapter 1 focuses on Real Numbers covering topics like Euclid’s Division Lemma prime factorization and the Fundamental Theorem of Arithmetic. It explores rational and irrational numbers along with their decimal expansions. This chapter strengthens problem-solving skills for CBSE Exam 2024-25 and builds a foundation for advanced concepts in mathematics while emphasizing applications in real-life situations and enhancing analytical thinking.