Question

Find the 5 rational numbers between 0.5and 0.6

Answer 1

Here we go.

the ans is in between 0.5 and 0.6

so, 5 of the are,
0.51, 0.52, 0.53, 0.54, 0.55, 0..56 [etc.]

You even can select the ones which have more digits like 0.515, 0.51426 etc.

Answer 2

5 rational numbers between 0.5 and 0.6 can be any 5 numbers up to any number of decimal places that lies between 0.5 and 0.6.

Accordingly,

5 rational numbers between 0.5 and 0.6 could be = 0.52, 0.54, 0.55, 0.56, 0.58

Or, it can also be 0.5124, 0.5676, 0.588, 0.59, 0.5789.    

Rational numbers are defined as the numbers that can be expressed as a fraction of quotient or a fraction representing p/q. A real number that is not rational is called as an irrational number.