Printable Textbook: Fractions - Level 1 | Mental Maths - Class 1 PDF Download

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Fractions
(Refers to the Chapter # 9 of the NCERT Maths Book of Class IV)
Summary
• Fraction: A fraction is a part of a whole (or collection) divided in 
equal parts.
• This chapati is a whole and  • These eight balls if grouped together
 is denoted by 1.  form a collection and the collection
   is again represented as 1.
• When it is divided into equal  • When the collection is divided
 parts, each part is called Half   into two equal parts, each part is
 or ½.  called half or =
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80
M E
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Fractions
(Refers to the Chapter # 9 of the NCERT Maths Book of Class IV)
Summary
• Fraction: A fraction is a part of a whole (or collection) divided in 
equal parts.
• This chapati is a whole and  • These eight balls if grouped together
 is denoted by 1.  form a collection and the collection
   is again represented as 1.
• When it is divided into equal  • When the collection is divided
 parts, each part is called Half   into two equal parts, each part is
 or ½.  called half or =
41
82
 
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Tutty Speaks
  In  1      Numerator
   2      Denominator
Since denominator shows ‘ total number of equal 
parts made’ , it cannot be zero. Numerator represents 
‘number of equal parts taken or selected’.
• Each of the following circles has been divided into four equal  parts. 
Shaded portion in each represents:
 One - fourth  Two - fourths Three - fourths Four - fourths 
 or or two quarters or or, Four quarters
 one quarter  or three quarters or
 
 
 
1
4
2
4
3
4
4
4
2
4
1
2
=
1
2
4
4
1
1
=
1
1
1 =
whole
Half
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M E
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Fractions
(Refers to the Chapter # 9 of the NCERT Maths Book of Class IV)
Summary
• Fraction: A fraction is a part of a whole (or collection) divided in 
equal parts.
• This chapati is a whole and  • These eight balls if grouped together
 is denoted by 1.  form a collection and the collection
   is again represented as 1.
• When it is divided into equal  • When the collection is divided
 parts, each part is called Half   into two equal parts, each part is
 or ½.  called half or =
41
82
 
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N
T
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Tutty Speaks
  In  1      Numerator
   2      Denominator
Since denominator shows ‘ total number of equal 
parts made’ , it cannot be zero. Numerator represents 
‘number of equal parts taken or selected’.
• Each of the following circles has been divided into four equal  parts. 
Shaded portion in each represents:
 One - fourth  Two - fourths Three - fourths Four - fourths 
 or or two quarters or or, Four quarters
 one quarter  or three quarters or
 
 
 
1
4
2
4
3
4
4
4
2
4
1
2
=
1
2
4
4
1
1
=
1
1
1 =
whole
Half
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Tuntty Speaks
If we divide a shape or collection into four 
unequal parts, then each part is not 
called a fraction.
Questions
1. What part of the circle is not shaded?
1
2
1
2
+=             1
=
1
4
1
4
+=     1
1
4
1
4
+ +
Two halves make a wholeFour fourths make a whole
=
=
1
3
=        1
1
3
1
3
+ +
r ee thirds make a whole
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M E
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Fractions
(Refers to the Chapter # 9 of the NCERT Maths Book of Class IV)
Summary
• Fraction: A fraction is a part of a whole (or collection) divided in 
equal parts.
• This chapati is a whole and  • These eight balls if grouped together
 is denoted by 1.  form a collection and the collection
   is again represented as 1.
• When it is divided into equal  • When the collection is divided
 parts, each part is called Half   into two equal parts, each part is
 or ½.  called half or =
41
82
 
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N
T
A
L
M
A
T H
S
81
Tutty Speaks
  In  1      Numerator
   2      Denominator
Since denominator shows ‘ total number of equal 
parts made’ , it cannot be zero. Numerator represents 
‘number of equal parts taken or selected’.
• Each of the following circles has been divided into four equal  parts. 
Shaded portion in each represents:
 One - fourth  Two - fourths Three - fourths Four - fourths 
 or or two quarters or or, Four quarters
 one quarter  or three quarters or
 
 
 
1
4
2
4
3
4
4
4
2
4
1
2
=
1
2
4
4
1
1
=
1
1
1 =
whole
Half
82
M E
N
T
A
L
M
A
T H
S
Tuntty Speaks
If we divide a shape or collection into four 
unequal parts, then each part is not 
called a fraction.
Questions
1. What part of the circle is not shaded?
1
2
1
2
+=             1
=
1
4
1
4
+=     1
1
4
1
4
+ +
Two halves make a wholeFour fourths make a whole
=
=
1
3
=        1
1
3
1
3
+ +
r ee thirds make a whole
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2. What part of the square is shaded?
3. Which of the following is half shaded?
(i) 
  A B C D
(ii) 
  A B C D
4. Which of the following is three quarters shaded?
  A B C D
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Fractions
(Refers to the Chapter # 9 of the NCERT Maths Book of Class IV)
Summary
• Fraction: A fraction is a part of a whole (or collection) divided in 
equal parts.
• This chapati is a whole and  • These eight balls if grouped together
 is denoted by 1.  form a collection and the collection
   is again represented as 1.
• When it is divided into equal  • When the collection is divided
 parts, each part is called Half   into two equal parts, each part is
 or ½.  called half or =
41
82
 
M E
N
T
A
L
M
A
T H
S
81
Tutty Speaks
  In  1      Numerator
   2      Denominator
Since denominator shows ‘ total number of equal 
parts made’ , it cannot be zero. Numerator represents 
‘number of equal parts taken or selected’.
• Each of the following circles has been divided into four equal  parts. 
Shaded portion in each represents:
 One - fourth  Two - fourths Three - fourths Four - fourths 
 or or two quarters or or, Four quarters
 one quarter  or three quarters or
 
 
 
1
4
2
4
3
4
4
4
2
4
1
2
=
1
2
4
4
1
1
=
1
1
1 =
whole
Half
82
M E
N
T
A
L
M
A
T H
S
Tuntty Speaks
If we divide a shape or collection into four 
unequal parts, then each part is not 
called a fraction.
Questions
1. What part of the circle is not shaded?
1
2
1
2
+=             1
=
1
4
1
4
+=     1
1
4
1
4
+ +
Two halves make a wholeFour fourths make a whole
=
=
1
3
=        1
1
3
1
3
+ +
r ee thirds make a whole
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2. What part of the square is shaded?
3. Which of the following is half shaded?
(i) 
  A B C D
(ii) 
  A B C D
4. Which of the following is three quarters shaded?
  A B C D
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5. Which shape shows one - half?
  A B C
6. Identify the fraction of the shaded portion:
 A. 
1
4
 B. 
2
5
 C. 
2
4
 D. 
2
3
7. What is the fraction of the shaded portion in the figure?
 A. 
1
4
 B. 
3
4
 C. 
1
2
 D. 1