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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 has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.