Ex 8.2, 1 (vii) - Chapter 8 Class 7 Rational Numbers

Last updated at Dec. 16, 2024 by

Slide8.JPG

Slide9.JPG

Share on WhatsApp

Transcript

Ex 8.2, 1 Find the sum : (vii) −21/3 + 4 3/5 −21/3 + 4 3/5 = − (2+ 1/3) + (4+ 3/5) = − ((2 × 3 + 1)/3) + ((4 × 5 + 3)/5) = − ((6 + 1)/3) + ((20 + 3)/5) = (−7)/3 + 23/5 = (− 𝟕 × 𝟓 + 𝟐𝟑 × 𝟑)/(𝟑 × 𝟓) = (− 35 + 69)/(15 ) = (69 − 35)/(15 ) = 𝟑𝟒/𝟏𝟓

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo