Question

find two rational number between 1/2 and 2/5

Answer 1

1/2=.5
2/5= .4
so two rational number between them are
.45,.47, .48

Answer 2

Here is your answer !!!

1/2 and 2/5
1×5/2×5 and 2×2/5×2
5/10 and 4/10
Now multiply each no by 10
50/100 and 40/100

So the rational no between 1/2 and 2/5 are 55/100 and 56/100 are rational number .