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Ex 2.1, 2 - Arrange in descending order (i) 2/9 2/3, 8/21 (ii) 1/5

Ex 2.1, 2 - Chapter 2 Class 7 Fractions and Decimals - Part 2

 


Transcript

Ex 2.1, 2 Arrange the following in descending order: (i) 2/9 , 2/3 , 8/21 2/9, 2/3, 8/21 We need to arrange these in descending order. To find which number is greater or smaller, We make their denominators equal. Common denominator = LCM of 3, 9, 21 = 3 3 7 = 9 7 = 63 So, 2/9 = 2/3 = 8/21 = Therefore, In descending order 42/63, 24/63, 14/63 i.e. / , / , /

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.