what is 7/2?

It is also and Improper fraction.

This is because it is greater than (or equal to) 1.  

The numerator (top) is bigger than the denominator (bottom)    

It is a fraction.

$${\frac{{\mathtt{7}}}{{\mathtt{2}}}} = {\mathtt{3.5}}$$

$${\mathtt{3.5}} = {\mathtt{3}}$$$${\frac{{\mathtt{1}}}{{\mathtt{2}}}}$$

thanks melody.