1. **State the problem:** We need to find how many glasses of milk can be filled from 1 7/8 jugs of milk if one glass holds 3/8 of a jug. 2. **Write the known quantities:** - One glass = $\frac{3}{8}$ jug - Total milk = $1 \frac{7}{8} = \frac{15}{8}$ jugs 3. **Set up the division:** We want to find how many glasses fit into $\frac{15}{8}$ jugs, so divide total milk by milk per glass: $$\frac{15}{8} \div \frac{3}{8}$$ 4. **Use the division of fractions rule:** Dividing by a fraction is the same as multiplying by its reciprocal: $$\frac{15}{8} \times \frac{8}{3}$$ 5. **Multiply and simplify:** $$\frac{15}{8} \times \frac{8}{3} = \frac{15 \times \cancel{8}}{\cancel{8} \times 3} = \frac{15}{3}$$ 6. **Simplify the fraction:** $$\frac{15}{3} = 5$$ 7. **Answer:** You can fill **5 glasses** of milk from 1 7/8 jugs.