Students began their study of numbers by counting objects around you. The numbers used for this purpose were called counting numbers or natural numbers. They are 1, 2, 3, 4, ... By including 0 to natural numbers, we got the whole numbers, i.e., 0, 1, 2, 3, ... The negatives of natural numbers were then put together with whole numbers to make up integers. Integers are ..., –3, –2, –1, 0, 1, 2, 3, .... the number system was thus extended, from natural numbers to whole numbers and from whole numbers to integers.
Students were also introduced to fractions in previous classes. These are numbers of the form numerator and denominator, where the numerator is either 0 or a positive integer and the denominator, a positive integer. Students compared two fractions, found their equivalent forms and studied all the four basic operations of addition, subtraction, multiplication and division on them. In NCERT Grade 7 Chapter 9, Rational Numbers students shall extend the number system further. The concept of rational numbers along with their addition, subtraction, multiplication and division operations is introduced to the students.
Introduction to Rational Numbers, Need for Rational Numbers, What Are Rational Numbers? Positive and Negative Rational Numbers, Rational Numbers On A Number Line, Rational Numbers In Standard Form, Comparison Of Rational Numbers, Rational Numbers Between Two Rational Numbers, Operations On Rational Numbers, Addition, Subtraction, Multiplication and Division are the main concepts studied in this chapter. This chapter will take the students through the wonderful world of Rational Numbers. It will help them to not only develop a grip of the topic but also master the concepts that will help them to perform better. A foundation base for future complex topics, NCERT Grade 7 Chapter 9, Rational Numbers is easy to understand.
Get 100 percent accurate NCERT Solutions for Class 7 Maths Chapter 9 (Rational Numbers) solved by expert Maths teachers. We provide step by step solutions for questions given in class 7 maths text-book as per CBSE Board guidelines from the latest NCERT book for class 7 maths. The topics and sub-topics in Chapter 9 Rational Numbers are given below.
9.2 NEED FOR RATIONAL NUMBERS
9.3 WHAT ARE RATIONAL NUMBERS?
9.4 POSITIVE AND NEGATIVE RATIONAL NUMBERS
9.5 RATIONAL NUMBERS ON A NUMBER LINE
9.6 RATIONAL NUMBERS IN STANDARD FORM
9.7 COMPARISON OF RATIONAL NUMBERS
9.8 RATIONAL NUMBERS BETWEEN TWO RATIONAL NUMBERS
9.9 OPERATIONS ON RATIONAL NUMBERS
We cover all exercises in the chapter given below:-
EXERCISE 9.1 - 10 Questions with Solutions
EXERCISE 9.2 - 4 Questions with Solutions.
Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Rational Numbers. You can also download the free PDF of Chapter 9 Rational Numbers and take the print out to keep it handy for your exam preparation.