Question

Write a mix number that is greater than 3 but less than 4

Answer 1

3 1/2  is greater than 3 but less than 4

Answer 2

lets find that number:
3 < x < 4
that can easily be thought as 3.5
3 < 3.5 < 4
now lets change the decimal to a mix number:
3.5 = 3 + 0.5
= 3 + 5/10
= 3 + 1/2
= 3 1/2