Question

find two rational number between 2/7 and 3/7

Answer 1

2/7 = 2*3/7*3 = 6/21
Similarly 3/7 = 9/21

Hence two rational nos. are 7/21 and 8/21

Answer 2

2/7 and 3/7
2×3/7×3 and 3×3/7×3
= 6/21 and 9/21
= 7/21, 8/21 answer....