Page 92 - New Medley 4 Semester 2 PDF (Merged)

18 18 ÷9 2
(d) = = (∴ HCF of 18 and 45 is 9.)
45 45 ÷9 5

2 18
∴ is the simplest form of .
5 45

EXERCISE 1.2

Check if the following fractions are in the lowest term. If not, reduce to
the lowest term.
5 9 10 12 24
1. 2. 3. 4. 5.
15 15 21 20 40

15 18 11 12 24
6. 7. 8. 9. 10.
22 27 16 40 96

Types of Fractions

Sona and Mona, two sisters, got a jar of toffees from their aunt. Aunt
1
told them to share equally. Each of them got jar of toffees as per
2

instruction. They counted together 35 toffees in the jar. Then, the share
35 1
of each one is toffees or 17 toffees. These all are fractions, referring
2 2

to a part of the whole, we call them by a special name.

Proper Fraction

1
In the given fractions, jar is called proper fraction. Here, the numerator
2

1 < the denominator 2. Thus, a fraction in which the numerator is less
2 3 7
than the denominator is called a proper fraction. , , , etc., are some
3 5 10
more proper fractions.

Note: A fraction with numerator 1 is called a unit fraction. It is a special
1 1 1 1
type of proper fraction. Here, is also called a unit fraction. , , ,
2 3 5 7

etc., are some more unit fractions.

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