# 7th Class Mathematics Rational Numbers Introduction

## Introduction

Category : 7th Class

### Introduction

We have already studied about the integers, the fractions, the decimals and their operations. We know that for a given integer a and b, their addition, subtraction and multiplication are always an integer but the result of division of an integer by a non-negative integer may or may not be an integer. In this chapter we will study about a new number system which is formed by the division of two integers.

A number which is in the form of  $\frac{a}{b}$ where and b are integers and $b\ne 0$ is called a rational number, for example $\frac{-1}{2},\frac{3}{-14},\frac{15}{7}$ are rational numbers.

#### Other Topics

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