Page 1 - MM1

SAI International School

Class : VII

Mathematics

Chapter - 9 – Rational Number

Lesson Note – 9.1

Subtopics:

 Introduction
 What are rational numbers?
 Equivalent rational numbers
 Positive and Negative rational numbers
 Rational numbers on a number line
 Rational numbers in standard form

Introduction:
Natural Numbers:
All positive integers like 1, 2, 3, 4……..are natural numbers.

Whole Numbers:
All natural numbers including 0 are whole numbers.

Integers:
All negative and positive numbers including 0 are called Integers.
Rational Numbers:

Rational Numbers are the numbers that can be expressed in the form where p and q are integers (q ≠

0). It includes all natural, whole numbers, fractions, and integers.