Bryan should have split the [tex]\frac{1}{2}[/tex] into four equal parts (not 8). Each smaller part is [tex]\frac{1}{8}[/tex]
Note how [tex]\frac{4}{8}[/tex] reduces to [tex]\frac{1}{2}[/tex]
Since there are 4 smaller parts or groups, this means
[tex]\frac{1}{2} \div \frac{1}{8} = 4[/tex]
Refer to the diagram below.
