Question

EXERCISE 1 (D)
1. Find a rational number between a and b, if:
7
(a) a= 1/5,b=1/4​

Answer 1

Answer:

rational no. between a and b are

a =1/5 and b=1/4

take the LCM of 5 and 4 to get common denominators.

LCM is 20

1/5 ×4/4 =4/20

1/4 ×5/5 =5/20

any no. is not ther so we multiply the denominator with 2

4/20 × 2/2= 8/40

5/20 × 2/2=10/40

so between these two rational no. we can inserta rational no. that is 9/40

So the answer is . a rational no. present between the rational no. a and b os 9/40