Class 7 Maths NCERT Solutions for Chapter 2 Fractions and Decimals EX – 2.7

Fractions and Decimals

Question 1.
Find :
(i)
 0.4 ÷ 2
(ii) 0.35 ÷ 5
(iii) 2.48 ÷ 4
(iv) 65.4 ÷ 6
(v) 651.2 ÷ 4
(vi) 14.49 ÷ 7
(vii) 3.96 ÷ 4
(viii) 0.80 ÷ 5
Solution:

NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals 74
NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals 75

Question 2.
Find :

  1. 48 ÷ 10
  2. 52.5 ÷ 10
  3. 0.7 ÷ 10
  4. 361 ÷ 10
  5. 697 ÷ 10
  6. 272.23 ÷ 10
  7. 0.56 ÷ 10

Solution:

  1. 4.8 ÷ 10 = 0.48
  2. 52.5 ÷ 10 = 5.25
  3. 0.7 ÷ 10 = 0.07
  4. 33.1 ÷ 10 = 3.31
  5. 272.23 ÷ 10 = 27.223
  6. 0.56 ÷ 10 = 0.056
  7. 3.97 ÷ 10 = 0.397

Question 3.
Find :

  1. 2.7 ÷ 100
  2. 0.3 ÷ 100
  3. 0.78 ÷ 100
  4. 432.6 ÷ 100
  5. 23.6 ÷ 100
  6. 98.53 ÷ 100

Solution:

  1. 2.7 ÷ 100 = 0.027
  2. 0.3 ÷ 100 = 0.003
  3. 0.78 ÷ 100 = 0.0078
  4. 432.6 ÷ 100 = 4.326
  5. 23.6 ÷ 100 = 0.236
  6. 98.53 ÷ 100 = 0.9853

Question 4.
Find :

  1. 7.9 ÷ 1000
  2. 26.3 ÷ 1000
  3. 38.53 ÷ 1000
  4. 128.9 ÷ 1000
  5. 0.5 ÷ 1000

Solution:

  1. 7.9 ÷ 1000 = 0.0079
  2. 26.3 ÷ 1000 = 0.0263
  3. 38.53 ÷ 1000 0.03853
  4. 128.9 ÷ 1000 = 0.1289
  5. 0.5 ÷ 1000 = 0.0005

Question 5.
Find :
(i)
 7 ÷ 3.5
(ii) 36 ÷ 0.2
(iii) 3.25 ÷ 0.5
(iv) 30.94 ÷ 0.7
(v) 0.5 ÷ 0.25
(vi) 7.75 ÷ 0.25
(vii) 76.5 ÷ 0.15
(viii) 37.8 ÷ 1.4
(ix) 2.73 ÷ 1.3

Solution:
NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals 76
NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals 77

Question 6.
A vehicle covers a distance of 43.2 km in 2.4 litres of petrol. How much distance will it cover in one litre of petrol?

Solution:
Distance covered in 2.4 litres of petrol = 43.2 km
Distance covered in 1 litre of petrol = (43.2 ÷ 2.4) km
NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals 78

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