RD Sharma Solutions for Class 9 Mathematics Chapter 1 Exercise 1.2 Number System is provided here for students to prepare well for exams. This set of solutions is designed by subject experts in accordance with the latest syllabus of the CBSE Board, which covers the decimal representation of rational numbers. Click on the links below to download the free PDFs of RD Sharma Solutions Class 9.
RD Sharma Solutions for Class 9 Maths Chapter 1 Number System Exercise 1.2
Access Answers to RD Sharma Solutions for Class 9 Maths Chapter 1 Number System Exercise 1.2 Page Number 1.12
Question 1: Express the following rational numbers as decimals.
(i) 42/100 (ii) 327/500 (iii) 15/4
Solution:
Question 2: Express the following rational numbers as decimals.
(i) 2/3 (ii) -4/9 (iii) -2/15 (iv) -22/13 (v) 437/999 (vi) 33/26
Solution:
(i) Divide 2/3 using long division:
(ii) Divide using long division: -4/9
(iii) Divide using long division: -2/15
(iv) Divide using long division: -22/13
(v) Divide using long division: 437/999
(vi) Divide using long division: 33/26
Question 3: Look at several examples of rational numbers in the form p/q (q ≠ 0), where p and q are integers with no common factors other than 1 and having terminating decimal representations. Can you guess what property q must satisfy?
Solution:
The decimal representation will be terminating if the denominators have factors 2 or 5, or both. Therefore, p/q is a terminating decimal when the prime factorization of q must have only powers of 2 or 5 or both.
RD Sharma Solutions for Class 9 Maths Chapter 1 Number System Exercise 1.2
Class 9 Maths Chapter 1 Number System Exercise 1.2 is based on the decimal representation of rational numbers. To facilitate easy learning and help students understand the number system concepts, RD Sharma Solutions for Class 9 Chapter 1 is provided here, which students can download in the form of PDFs for free.
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