Question

find two rational numbers between 4 and 5

Answer 1

13/3 & 18/4 & 21/5 etc....

Answer 2

1.4+5 by 2=9 by 2=4-1 by 2
2.4+9 by 2=8+9 by 2=17 by 2 =8 -1 by 2.
u may find many rational num bet any numbers
by using a+b by 2 formula.
hope it help u...