Question 1 - Figure it out - Page 86, 87 - Chapter 4 Class 7 - Another Peek beyond the Point (Ganita Prakash II)

Transcript

Question 1 (a) Express the following fractions in decimal form: (a) 2/5Here, we can convert denominator into 10 By Multiplying and Dividing by 2 Let’s do it 2/5=𝟐/𝟓 ×𝟐/𝟐 =(2 × 2)/(5 × 2) =𝟒/𝟏𝟎 =04/10 = 0.4 Question 1 (b) Express the following fractions in decimal form: (b) 13/4Here, we can convert denominator into 100 by Multiplying and Dividing by 25 (4 × 125) Or we can do by long division Let’s do by long division Thus, 𝟏𝟑/𝟒=𝟑.𝟐𝟓 Question 1 (c) Express the following fractions in decimal form: (c) 4/50Here, we can convert denominator into 100 By Multiplying and Dividing by 2 Let’s do it 4/50=𝟒/𝟓𝟎 ×𝟐/𝟐 =(4 × 2)/(50 × 2) =𝟖/𝟏𝟎𝟎 =008/100 = 0.08 Question 1 (d) Express the following fractions in decimal form: (d) 5/8 Here, we can convert denominator into 1000 by Multiplying and Dividing by 125 (8 × 125) Or we can do by long division Let’s do by long division Thus, 𝟓/𝟖=𝟎.𝟔𝟐𝟓