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\ 02-Nov-2023 Sonia Suyal Proof-1 Reader’s Sign _______________________ Date __________

one-third 1 (one-third) 1 (one-third)
3 3
When we divide a whole thing into three

equal parts, each part is called one-third.
1
We write one-third as .
3 1 (one-third)
Here, a pizza is cut into three equal parts. 3
1 1
Each part of pizza is one-third of the whole. We read as 1 upon 3 or 1 by 3.
3 3

Note that three one-thirds make a whole.

Practice time 6a

1. tick () the shapes that are divided into equal parts.

(a) (b) (c) (d) (e)

2. Colour one-half of each figure.

(a) (b) (c) (d) (e)

3. Colour one-third of each figure.

(a) (b) (c) (d) (e)

4. Draw a square and divide it into three equal parts. Mention which part represents
one-third. 1 1

4 (one-fourth) 4 (one-fourth)
one-fourth or quarter

When we divide a whole thing into four

equal parts, then each part is called one-
fourth or a quarter. We write one-fourth
1
as .
4
Here, an apple is cut into four equal parts. 1 (one-fourth) 1 (one-fourth)
1 1 4 4
Each part is one-fourth of the whole. We read as 1 upon 4 or 1 by 4.
4 4
Note that four one-fourths make a whole.

Mathematics-3 105