EXERCISE 2.3
Q 1, Ex 2.3 - Fractions and Decimals - Chapter 2 - Maths Class 7th - NCERT
Page No 41:
Question 1:
Find:(i)
of (a) (b) 
(c) 
(ii)
of (a) 
(b) 
(c) 
Page No 42:
Question 2:
Multiply and reduce to lowest form (if possible):(i)
(ii) 
(iii) 
(iv)
(v) 
(vi) 
(vii)
Answer:
(i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
Q 3, Ex 2.3 - Fractions and Decimals - Chapter 2 - Maths Class 7th - NCERT
Question 3:
Multiply the following fractions:(i)
(ii) 
(iii) 
(iv)
(v) 
(vi) 
(vii)
Answer:
(i)
This is an improper fraction and it can be written as a mixed fraction as
.(ii)
This is an improper fraction and it can be written as a mixed fraction as
.(iii)
This is a whole number.
(iv)
This is an improper fraction and it can be written as a mixed fraction as
.(v)
This is an improper fraction and it can be written as a mixed fraction as
.(vi)
This is an improper fraction and it can be written as a mixed fraction as
.(vii)
This is an improper fraction and it can be written as a mixed fraction as
.Q 4, Ex 2.3 - Fractions and Decimals - Chapter 2 - Maths Class 7th - NCERT
Question 4:
Which is greater:(i)
of 
or
of 
(ii)
of 
or
of 
Answer:
(i)
Converting these fractions into like fractions,
Therefore,
of is greater.(ii)
Therefore,
of is greater.Q 5, Ex 2.3 - Fractions and Decimals - Chapter 2 - Maths Class 7th - NCERT
Question 5:
Saili plants 4 saplings, in a row, in her garden. The distance between two adjacent saplings is
m. Find the distance between the first and the last sapling.Answer:
Length of 1 gap =
Therefore, distance between I and IV sapling =
Q 6, Ex 2.3 - Fractions and Decimals - Chapter 2 - Maths Class 7th - NCERT
Question 6:
Lipika reads a book for
hours everyday. She reads the entire book in 6 days. How many hours in all were required by her to read the book?Answer:
Number of hours Lipika reads the book per day =
Number of days = 6
Total number of hours required by her to read the book =
Q 7, Ex 2.3 - Fractions and Decimals - Chapter 2 - Maths Class 7th - NCERT
Question 7:
A car runs 16 km using 1 litre of petrol. How much distance will it cover using
litres of petrol.Answer:
Number of kms a car can run per litre petrol = 16 kmQuantity of petrol =
Number of kms a car can run for
litre petrol = 
= 44 kmIt will cover 44 km distance by using
litres of petrol.
Q 8, Ex 2.3 - Fractions and Decimals - Chapter 2 - Maths Class 7th - NCERT
Question 8:
(a) (i) Provide the number in the box
, such that 
.(ii) The simplest form of the number obtained in
is _______.(b) (i) Provide the number in the box
, such that 
?(ii) The simplest form of the number obtained in
is _______.Answer:
(a) (i) As
,Therefore, the number in the box
, such that is
.(ii) The simplest form of
is 
.(b) (i) As
,Therefore, the number in the box
, such that is
.(ii) As
cannot be further simplified, therefore, its simplest form is
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