RD Sharma Solutions Class 7 Rational Numbers Exercise 4.4

RD Sharma Solutions Class 7 Chapter 4 Exercise 4.4

RD Sharma Class 7 Solutions Chapter 4 Ex 4.4 PDF Free Download

Exercise 4.4

Q 1 .Write each of the following rational numbers in the standard form :

(i) 2/10

(ii) -8/36

(iii) 4/-16

(iv) . -15/-35

(v) 299/-161

(vi) -63/-210

(vii) 68/-119

(viii) -195/275

SOLUTION :

(i) The denominator is positive and HCF of 2 and 10 is 2 .

Therefore , Dividing the numerator and denominator by 2 , we get :

2/10 = 2/2 , 10/2 = 1/5

(ii) The denominator is positive and HCF of 8 and 36 is 4 .

Therefore , Dividing the numerator and denominator by 4 , we get : -8/36 = -8/4 , 36/4 = -2/9

(iii) The denominator is negative .

(4x-1)/(-16x-1) = -4/16

HCF of 4 and 16 is 4.

Therefore , Dividing the numerator and denominator by 4 , we get : -4/4 , 16/4 = -1/4