Ex 1.3,6 - Look at several examples of rational numbers - Finding decimal expansion

  1. Chapter 1 Class 9 Number Systems
  2. Serial order wise

Transcript

Ex1.3, 6 Look at several examples of rational numbers in the form / (q 0), where p and q are integers with no common factors other than 1 and having terminating decimal representations (expansions). Can you guess what property q must satisfy? Let us take 1/2 , 1/4 , 7/8 , 37/25 , 8/125 ,17/20 , 31/16 etc. which has terminating decimal expansion Hence, in / , q is either 2 or power of 2 or 5 or power of 5 or both

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.