Page 108 - Math Genius C3

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\ 08-Oct-2025 Bharat Arora Proof-10 Reader’s Sign _______________________ Date __________

One-Third One-third

When we divide an object into three equal parts, each part is called
1
one-third of the whole. We express one-third by and read it as one Three one-thirds

by three or one over three. 3 make a whole.
One-Fourth One-
fourth
When we divide an object into four equal parts, each part is called

one-fourth (or quarter) of the whole. We express one-fourth by 1 Four one-fourths
4
and read it as one by four or one over four. make a whole.

Similarly, a region can be divided into several
equal parts and each part can be shown as a Knowledge Desk
fraction. Chandrayaan-3 launched on Cross-Curricular Learning
14 July 2023 covered about two thirds
WriTing FracTiOns  2
  of the distance to the Moon in

3
We represent a fraction like this: around 22 days during its
Number of parts being talked about whole journey of 41 days. It
Fraction = landed on the Moon on 23
Total number of equal parts August 2023.

2
In the given figure, 2 parts out of 3 equal parts are shaded. We express it as
3
and read it as two-thirds or two by three or two over three.

Let's look at some more fractions and learn how to read and understand them.

Fraction Understanding Reading

2 Two-ninths

9 2 parts out of 9 equal parts of
a whole are coloured.

6 Six-sevenths

7
6 parts out of 7 equal parts of
a whole are coloured.
numerator and Denominator of a Fraction

Monu’s mat has 9 squares. He paints 4 squares red.

4 Numerator
The fraction representing red squares =
9 Denominator

Here, 4 is called the numerator and 9 is called the denominator of the fraction.

106 Mathematics-3