Ex 2.2, 7 - Find (a) 1/2 of (i) 2 3/4 (ii) 4 2/9  (b) 5/8 of (i) 3 5/6

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Ex 2.2, 7 - Chapter 2 Class 7 Fractions and Decimals - Part 2

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Ex 2.2, 7 - Chapter 2 Class 7 Fractions and Decimals - Part 3 Ex 2.2, 7 - Chapter 2 Class 7 Fractions and Decimals - Part 4

 

 

 

 

  1. Chapter 2 Class 7 Fractions and Decimals
  2. Serial order wise

Transcript

Ex 2.2, 7 Find: (a) 1/2 of (i) 2 3/4 1/2 × 2 3/4 = 1/2 × 2 3/4 = 1/2 × (2+3/4) = 1/2 × ((2 × 4 + 3)/4) = 1/2 × ((8 + 3)/4) = 1/2 × 11/4 = 11/(2 × 4) = 11/8 Converting to mixed fraction = 1 𝟑/𝟖 Ex 2.2, 7 Find: (a) 1/2 of (ii) 4 2/91/2 × 4 2/9 = 1/2 × 4 2/9 = 1/2 × (4+2/9) = 1/2 × ((4 × 9 + 2)/9) = 1/2 × ((36 + 2)/9) = 1/2 × 38/9 = 38/(2 × 9) = 19/9 Converting to mixed fraction = 2 𝟏/𝟗

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.