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Ex 2.2, 7 (a) - Chapter 2 Class 7 Fractions and Decimals

Last updated at Sept. 9, 2021 by

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

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

 

 

 

 

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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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