Example 2 Find (−4)/5 × 3/7 ×15/16 ×((−14)/9) (−4)/5 × 3/7 ×15/16 ×((−14)/9) = ((−𝟒)/𝟓×𝟏𝟓/𝟏𝟔) × (𝟑/𝟕×((−𝟏𝟒)/𝟗)) = ((−4)/16×15/5) × (3/9×((−14)/7)) = ((−1)/4× 3/1)×(1/3× (−2)/1) = (−𝟑)/𝟒 × ((−𝟐))/𝟑 = (−3)/3 × ((−2))/4 = –1 × (−1)/2 = 𝟏/𝟐 Rough For multiplication, we group numerator to denominator Since 16 = 4 × 4 We group (−4)/5 and 15/16 together And 9 = 3 × 3 We group 3/7 and (−14)/9 together

Next: Example 3 Important → Ask a doubt

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Davneet Singh

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.

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