The numbers between \(\frac{12}{4}=3\) and
\(\frac{15}{4}=3\frac{3}{4}\) are:
\(\frac{13}{4}=3\frac{1}{4}\) and \(\frac{14}{4}=3\frac{2}{4}\)
You must specify the numbers in the numerator greater than 12 but less than 15, then just turn into a fraction.