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Ex 2.3, 3 - Multiply (i) 2/5 x 5 1/4 (ii) 6 2/5 x 7/9  (iii) 3/2 x 5

Ex 2.3, 3 - Chapter 2 Class 7 Fractions and Decimals - Part 2

 

 


Transcript

Ex 2.3, 3 Multiply the following fractions: (i) 2/5 x 5 1/4 2/5 × 5 1/4 = 2/5 × (5+1/4) = 2/5 × ((5 × 4 + 1 )/4) = 2/5 × ((20 + 1)/4) = 2/5 × 21/4 = (2 × 21)/(5 × 4) = 21/(5 × 2) = 21/10 Since Numerator > Denominator We will convert it into mixed fraction = 2 𝟏/𝟏𝟎

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.