RD Sharma Solutions (Ex.1.4): Rational Numbers Notes | Study RD Sharma Solutions for Class 8 Mathematics - Class 8

Question 1: Simplify each of the following and write as a rational number of the form p/q:

Answer :

(i)

=17/24

(ii) 

= -17/18

(iii)

= -119/24

(iv) 

= -61/31

(v)

= -5/60

= -1/12

(vi)

= 5/6

Question 2: Express each of the following as a rational number of the form p/q:

Answer :

(i)

= -177/24

= -59/8

(ii) 

= 17/63

(iii) 

= 235/24

(iv) 

= -121/140

(v)

= 7/12

Question 3: Simplify:

Answer :

(i)

Taking the L.C.M.of the denominators:

= -8/4

= -2

(ii)

Taking the L.C.M.of the denominators:

= -1/6

(iii)

Taking the L.C.M.of the denominators:

= 9/12

= 3/4

(iv)

Taking the L.C.M.of the denominators:

= 33/70

(v)

Taking the L.C.M.of the denominators:

= 17/30

(vi)

Taking the L.C.M.of the denominators: 

= 33/72

= 11/24