Question

insert three rational number between 2 by 5 and 3 by 7

Answer 1

Let the lcm of 5 and 7 is 35.
2/5 = 2/5×7/7= 14/35.&
3/7= 3/7×5/5=15/35.

*14/35=14/35 × 4/4=56/140.&
*15/35=15/35×4/4=60/140.

**The three rational no.between 2/5. & 3/7=57/140, 58/140,&56/140.etc.....


Hope it will help you.....