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  1. Chapter 1 Class 8 Rational Numbers
  2. Serial order wise
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Example 5 Find 2/5 "×" (−3)/7− 1/14−3/7 "×" 3/5 2/5 "×" (−3)/7− 1/14−3/7 "×" 3/5 = 2/5 × (−3)/7−𝟑/𝟕× 𝟑/𝟓− 1/14 = 2/5 × (−𝟑)/𝟕 + ((−𝟑)/𝟕) × 3/5 − 1/14 = (−𝟑)/𝟕 (2/5+3/5)−1/14 = (−3)/7 × 5/5 −1/14 = (−3 × 2 − 1)/14 = (−6 − 1)/14 = (−7)/14 = (−𝟏)/𝟐

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.