Question 7 - Multiplicative Identity and Inverse - Chapter 1 Class 8 Rational Numbers

Last updated at Dec. 16, 2024 by

Ex 1.1, 9 - Is 0.3 multiplicative inverse of 1 1/3? Why or why not?

Ex 1.1, 9 - Chapter 1 Class 8 Rational Numbers - Part 2

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Question 5 Is 0.3 the multiplicative inverse of 31/3? Why or why not ? 0.3 = 3/10 3 1/3 = (3 × 3 + 1)/3 = 10/3 We know that, Number × Multiplicative inverse of Number = 1 We need to check if 31/3 × 0.3 = 1 Taking L.H.S 3 1/3 × 0.3 = 10/3 × 3/10 = 1 = R.H.S Hence, 0.3 is the multiplicative inverse of 3 1/3 as product is 1.

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo