We want to find the value of the expression:
[tex]\frac{64}{16}[/tex]Since 2 is a common factor of both numerator and denominator, we divide by 2s:
[tex]\frac{64}{16}=\frac{32}{8}=\frac{16}{4}=\frac{8}{2}=\frac{4}{1}=\text{ 4}[/tex]The answer is 4. (Option A)