RD Sharma Class 9 Solutions Chapter 1 Exercise 1.2 (Updated for 2024)

RD Sharma Class 9 Solutions Chapter 1 Exercise 1.2: Prepare for your Class 9 Maths exams with the RD Sharma Solutions Class 9 Maths. All the solutions are designed by subject matter experts and as per the current CBSE syllabus. To know more about the RD Sharma Class 9 Solutions Chapter 1 Exercise 1.2, read the whole blog.

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RD Sharma Class 9 Solutions Chapter 1 Exercise 1.2

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RD Sharma Class 9 Chapter 1 Number System Ex 1.2

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.

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