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  1. Chapter 2 Class 7 Fractions and Decimals
  2. Serial order wise
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Transcript

Ex 2.1, 6 Salil wants to put a picture in a frame. The picture is 7 3/5 cm wide. To fit in the frame the picture cannot be more than 73/10 cm wide. How much should the picture be trimmed?There are two things here – picture, and frame So, Picture has to be trimmed Amount to be trimmed = 7 3/5 − 7 3/10 = (7+3/5) − (7+3/10) = (7 − 7) + (3/5−3/10) = 0 + (3/5−3/10) = 3/5−3/10 = (3 × 10 − 3 × 5)/(5 × 10) = (30 − 15)/50 = 15/50 = 3/10 cm ∴ Picture has to be trimmed 𝟑/𝟏𝟎 cm

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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.