2½ = 5/2
(2½ water)/(⅓ juice) = (5/2 water)/(⅓ juice) = (5/2) × (3/1) water/juice = (15/2) water/juice
(1⅔ water)/(¼ juice) = (5/3 water)/(¼ juice) = (5/3) × (4/1) water/juice = (20/3) water/juice
15/2 = 45/6
20/3 = 40/6
45/6 > 40/6
Clare uses more water. Han’s juice tastes stronger.
