RD SharmaSolutions for Class 9 Maths Chapter 3 Rationalisation

A fraction whose denominator is a surd can be simplified by making the denominator rational. This process is called rationalizing the denominator. If the denominator has just one term that is a surd, the denominator can be rationalized by multiplying the numerator and denominator by that surd. "Rationalizing the denominator" is when we move a root (like a square root or cube root) from the bottom of a fraction to the top. Chapter 3 is about different algebraic identities and rationalization of the denominator. Rationalization is a process by which radicals in the denominator of a fraction are eliminated. In this chapter, students will learn to simplify algebraic expressions using identities.