Question

the sum of two rational numbers is 3/8. if one of them is 1/3, find the other one

Answer 1

Answer:

Let the required number be x. Then,

=(3/16)+x=(−3/8)

By sending (3/16) from left hand side to the right hand side it change to −(3/16)

x=(−3/8)−(3/16)

LCM of 8 and 16 is 16

Express each of the given rational numbers with the above LCM as the common denominator.

Now,

(8×2)

(−3×2)

=

16

−6

=

(16×1)

(3×1)

=

16

3

Then,

=

16

−6

−

16

3

=

16

−6−3

=

16

−9

Hence the required number is =

16

−9