Question

find two rational number between 4and 5

Answer 1

4.2 and 4.5..........

Answer 2

Multiplying 4 and 5 by 10 we get,
40 and 50
therefore rational nos between the nos are 41, 42 , 43 etc.

If you want accurate answer then it is 4.2 and 4.3, 4.4 and 4.5 respectively.

HOPE IT HELPS YOU DEAR!! :-)