RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 1. Rational Numbers

Subject: Maths - Class 8th

Q. No. 1 of Exercise 1.1

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1

Add the following rational numbers:

(i) and


(ii) and


(iii) and


(iv) and

(i) Clearly,

Denominators of the given numbers are positive


The L.C.M of denominator 7 and 7 is 7


We have,


+


=


=


(ii) Clearly,


Denominators of the given numbers are positive


The L.C.M of denominator 4 and 4 is 4


We have,


+


=


=


= -2


(iii) Clearly,


Denominators of the given numbers are positive


The L.C.M of denominator 11 and 11 is 11


We have,


+


=


=


(iv) Clearly,


Denominators of the given numbers are positive


The L.C.M of denominator 13 and 13 is 13


We have,


+


=


=


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