NCERT Solutions for Class 8 Maths Chapter 1 Rational Numbers Numbers are considered to be the most basic block of Mathematics. In lower classes, the students would have learned the different types of numbers including natural numbers, whole numbers, integers etc. Chapter 1 of Class 8 takes the students to another set of numbers, the rational numbers. A number which can be written in the form p/q, where p and q are integers and q ? 0 is called a rational number. This chapter explains almost all the concepts that a student of Class 8 has to learn about the rational numbers. Chapter 1 of Class 8 also describes the method of representing a rational number on a number line as well as the method of finding rational numbers between 2 rational numbers. What is the meaning of rational numbers according to NCERT Solutions for Class 8 Maths Chapter 1? According to NCERT Solutions for Class 8 Maths Chapter 1, rational numbers are represented in p/q form where q is not equal to zero. It is also a type of real number. Any fraction with non-zero denominators is a rational number. Hence, we can say that ‘0’ is also a rational number, as we can represent it in many forms such as 0/1, 0/2, 0/3, etc. But, 1/0, 2/0, 3/0, etc. are not rational, since they give us infinite values. List out the important concepts discussed in NCERT Solutions for Class 8 Maths Chapter 1. Main concepts covered in NCERT Solutions for Class 8 Maths Chapter 1 are listed below: 1.1 Introduction 1.2 Properties of Rational Numbers 1.2.1 Closure 1.2.2 Commutativity 1.2.3 Associativity 1.2.4 The role of zero 1.2.5 The role of 1 1.2.6 Negative of a number 1.2.7 Reciprocal 1.2.8 Distributivity of multiplication over addition for rational numbers.