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1 2 ←Mixed fraction
3
Mixed Fractions (Fractions greater than 1): A mixed fraction is a 1442443
combination of a whole number and a proper fraction.
2 2 5
For example, 1 , 3 , 2 , etc. are all mixed fractions. 1 2
3 5 8 3
Whole Proper fraction
Like Fractions: Fractions having the same denominators are called
like fractions.
3 4 5
For example, , , , etc. are all like fractions. 3 4
7 7 7 7 7
Unlike Fractions: Fractions having different denominators are called
unlike fractions.
4 1 14 4 9 1 5
For example, , , , etc. are all unlike fractions.
9 5 19
Knowledge Desk
Horus Eye Fraction
Fraction is derived from the Latin word– fractus means broken or a part of a whole. The Egyptian had
the concept of fraction but their knowledge of fraction was limited to unit fraction, a fraction with
1 as numerator. Probably, the concept of unit fraction in Egypt was due to their believe in Horus, an
Egyptian God who fought the forces of darkness and won. In a battle, his eye were broken into pieces.
Since, only one of his eyes broke into fraction so Egyptian used unit fraction the most. The oldest math
book– Ahmes Papyrus talks about 6 types of Egyptian fractions. The Egyptian fraction is unique and has
a great application in mathematics.
1
8
1 1 1
16 4 2
1
1
32 64
Horus Eye Fractions Oldest Book – Ahmes/Rhind Papyrus
Suppose you have 5 pizzas to be divided among 8 of your friends then by the process of Egyptian fraction
5 1 1
we can write = +
8 2 8
It means 4 pizzas will be divided into 8 halves and the remaining pizza into 8 equal parts to get each
2 2 1 1 1 1
equal share. In Ahmes (Rhind) Papyrus there is an expansion of as = + + + .
101 101 101 202 303 606
Any fractional number can be written as the sum of distinct unit fractions in multiple ways–
4 = 1 + 1 + 1 = 1 ++ 1 + 1 .
1
5 2 4 20 3 5 6 10
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