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  1. Chapter 2 Class 7 Fractions and Decimals
  2. Serial order wise
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Ex 2.3, 4 Which is greater: (i) 2/7 of 3/4 or 3/5 of 5/8 2/7 of 3/4 = 2/7 ร— 3/4 = (2 ร— 3)/(7 ร— 4) = 3/(7 ร— 12) = ๐Ÿ‘/๐Ÿ๐Ÿ’ 3/5 of 5/8 = 3/5 ร— 5/8 = (3 ร— 5)/(5 ร— 8) = ๐Ÿ‘/๐Ÿ– Now, We have to find greater of 3/14 & 3/8 To compare fractions, we make denominator equal. Common denominator = LCM of 14 & 8 = 2 ร— 2 ร— 2 ร— 7 = 8 ร— 7 = 56 So, 3/14 = 3/8 = โˆด 21/56 > 12/56 i.e. 3/8 > 3/14 โˆด 3/5 of 5/8 > 2/7 of 3/7 So, ๐Ÿ‘/๐Ÿ“ of ๐Ÿ“/๐Ÿ– is greater. Ex 2.3, 4 Which is greater: (ii) 1/2 of 6/7 or 2/3 of 3/71/2 of 6/7 = 1/2 ร— 6/7 = (1 ร— 6)/(2 ร— 7) = ๐Ÿ‘/๐Ÿ• 2/7 of 3/7 = 2/7 ร— 3/7 = (2 ร— 3)/(3 ร— 7) = ๐Ÿ/๐Ÿ• Now, We have to find greater of 3/7 & 2/7 Since denominator is same, Number with greater numerator is greater 3/7 > 2/7 โˆด 1/2 of 6/7 > 2/3 of 3/7 Thus, ๐Ÿ/๐Ÿ of ๐Ÿ”/๐Ÿ• is greater.

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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.