Chapter 1 Number System RD Sharma Solutions Exercise 1.2 Class 9 Maths
Chapter Name  RD Sharma Chapter 1 Number System Exercise 1.2 
Book Name  RD Sharma Mathematics for Class 10 
Other Exercises 

Related Study  NCERT Solutions for Class 10 Maths 
Exercise 1.2 Solutions
Express the following rational numbers as decimals :
1. (i) 42/100
(ii) 327/500
(iii) 15/4
Solution
2. (i) 2/3
(ii) 4/9
(iii) 2/15
(iv) 22/13
(v) 437/999
Solution
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
A rational number p/q is a terminating decimal only, when prime factors of q are q and 5 only. Therefore, p/q is a terminating decimal only, when prime factorization of q must have only powers of 2 or 5 or both.