The L.C.M of denominators 5 and 4 is 20

Converting the given rational numbers into equivalent rational number having common denominator 20, we get:

Clearly,

61, 62, 63,…, 74 are integers between numerators 60 and 75 of these equivalent rational numbers

Thus, we have

As rational number between and

We can take only 10 of these as required rational numbers