Class 7 Maths NCERT Solutions for Chapter 2 Fractions and Decimals EX – 2.6

Fractions and Decimals

Question 1.
Find :
(i)
 0.2 × 6
(ii) 8 × 46
(iii) 2.71 × 5
(iv) 20.1 × 4
(v) 0.05 × 7
(vi) 211.02 × 4
(vii) 2 × 0.86

Solution:

NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals 70

Question 2.
Find the area of a rectangle whose length is 5.7 cm and breadth is 3 cm.

Solution:

NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals 71

Question 3.
Find :

  1. 1.3 × 10
  2. 36.8 × 10
  3. 15a 7 × 10
  4. 168.07 × 10
  5. 31.1 × 100
  6. 156.1 × 100
  7. 3.62 × 100
  8. 43.07 × 100
  9. 0.5 × 10
  10. 0.08 × 10
  11. 0.9 × 100
  12. 0.03 × 1000

Solution:

  1. 1.3 × 10 = 13
  2. 36.8 × 10 = 368
  3. 153.7 × 10 = 1537
  4. 168.07 × 10 = 1680.7
  5. 31.1 × 100 = 3110
  6. 156.1 × 100 = 15610
  7. 3.62 × 100 = 362
  8. 43.07 × 100 = 4307
  9. 0.5 × 10 = 5
  10. 0.08 × 10 = 0.8
  11. 0.9 × 100 = 90
  12. 0.03 × 1000 = 30

Question 4.
A two-wheeler covers a distance of 55.3 km in one litre of petrol. How much distance will it cover in 10 litres of petrol?

Solution:
Distance covered in one litre of petrol = 55.3 km
Distance covered in 10 litres of petrol = (55.3 × 10) km = 553 km

Question 5.
Find:
(i)
 2.5 × 0.3
(ii) 0.1 × 51.7
(iii) 0.2 × 316.8
(iv) 1.3 × 3.1
(v) 0.5 × 0.05
(vi) 11.2 × 0.15
(vii) 1.07 × 0.02
(viii) 10.05 × 1.05
(ix) 101.01 × 0.01
(x) 100.01 × 1.1

Solution:

NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals 72
NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals 73

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