Step 1 :2 \frac{1}{2} = \frac{5}{2}
Step 2 :1 \frac{1}{3} = \frac{4}{3}
Step 3 :\frac{5}{2} \div \frac{4}{3} = \frac{5}{2} \times \frac{3}{4} = \frac{15}{8}