Class IV

HALVES AND QUARTERS

Equal/Unequal parts

(a)

(b)

(c)

(d)

• Here, each figure is cut into a number of parts – some in equal parts and some in unequal parts

• Name the figures which are divided into two equal parts.

• Figures (b) and (c) are divided into two equal parts.

Definition:-

• Fraction is a part of a whole.

One-fourth

One-half

One-third

whole

1

1

1

2

1

3

1

4

1 ,

2

1 ,

4

1

3

etc. are examples of fractions.

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Activity (Paper folding)

• Take a sheet of paper.

• Put the two edges one over the other and fold the paper.

• The line along the fold divides the paper into two equal parts.

One-half, One-fourth, One-third

whole

Two halves

Two halves

whole

How many halves make one

whole?

• Two halves make one whole.

• Four one-fourths make a whole.

• Three One-thirds make a whole .

Numerator and Denominator of a fraction

What fraction is shaded?

Three-fourths of the fraction is shaded.

It is written as ¾

Where 3 is called the numerator.

And 4 is called the denominator

3 Shaded part (Numerator)

4 Total parts (Denominator)

Bar

Write the fraction for the shaded part.

Figure

Divided into

Shaded part is called

fraction

4 equal parts

6 equal parts

5 equal parts

One - fourth

Two - sixths

Three - Fifths

Evaluation

1. Shade the figures to show fraction.

2. Fill in the blanks .

3/5

5/8

1. 2/5 Numerator

=

Denominator

=

b) There are ______ fourths in a whole.

3) Write the following fractions in words.

1. 4/5

2. 7/10

1. I am a fraction. My numerator is 3 and denominator is 7. Find out the fraction.

2. A square is divided into 12 parts. Out of which 7 are shaded. Give fraction of the unshaded part.

3. There are 14 boys out of 30 children in a class. What is the fraction of boys in the class?

RIDDLES