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Arrange the Following Rational Numbers in Ascending Order. − 7 12 , − 3 10 and − 2 5 - Mathematics

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Question

Arrange the following rational numbers in ascending order.

`(-7)/(12), (-3)/(10) and (-2)/(5)`

Sum

Solution

Given number : `(-7)/(12), (-3)/(10) and (-2)/(5)`

The L.C.M. of 12, 10 and 5 is 60.

Thus, numbers are:
`(-7)/(12)`

= `(-7 xx 5)/(12 xx 5)`

= `(-35)/(60)`;

`(-3)/(10)`

= `(-3 xx 6)/(10 xx 6)`

= `(-18)/(60)`;

`(-2)/(5)`

= `(-2 xx 10)/(5 xx 10)`

= `(-20)/(60)`

Since -35 < -20 < -18, we have `(-7)/(12) < (-2)/(5) < (-3)/(10)`.

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Chapter 1: Irrational Numbers - Exercise 1.1

APPEARS IN

Frank Mathematics [English] Class 9 ICSE
Chapter 1 Irrational Numbers
Exercise 1.1 | Q 10.2

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State Male `bb(p/q)` form Lowest terms
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Himachal Pradesh 65.1    
Karnataka 62.4    
Kerala 70.6    
Madhya Pradesh 56.5    
Maharashtra 64.5    
Orissa 57.6    
Punjab 66.9    
Rajasthan 59.8    
Tamil Nadu 63.7    
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West Bengal 62.8    
India 60.8    

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