A baker had 6 1/2 cups of flour. He used 2 3/4 cups for a cake. How much flour does he have left?

✓ Correct Answer: Option B

Convert to common denominator: 6 1/2 = 6 2/4. Subtract: 6 2/4 - 2 3/4. Borrow from the whole number: 5 6/4 - 2 3/4 = 3 3/4 cups.