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Ex 2.1, 1 - Chapter 2 Class 7 Fractions and Decimals - Part 9

Ex 2.1, 1 - Chapter 2 Class 7 Fractions and Decimals - Part 10

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Transcript

Question 1 Solve: (vii) 8 1/2 – 3 5/8 8 2/3 – 3 1/2 = ("8 +" 1/2) – (3+5/8) ="8 +" 1/2 – 3−5/8 = (8 − 3) + (1/2 −5/8) = 5 + ((1 × 8 − 5 × 2)/(2 × 8)) = 5 + ((8 − 10)/16) = 5 + ((−2)/16) = 5 + ((−1)/8) = 5 − 1/8 = (5 × 8 − 1)/8 = (40 − 1)/8 = 39/8 Since Numerator > denominator Converting to mixed fraction = 4 𝟕/𝟖

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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.