#### Answer

$\frac{5}{2}$

#### Work Step by Step

Point (b) is marked halfway between 2 and 3 on the number line, therefore it equals 2$\frac{1}{2}$. Now change 2$\frac{1}{2}$ into an improper fraction.
2$\frac{1}{2}$=$\frac{(2\times2)+1}{2}$=$\frac{4+1}{2}$=$\frac{5}{2}$