text: 1 pt = 2 cups = 16 oz.\n\nSo you just need to convert everything into ounces:\n\n1 pt 9 fl oz = 16 + 9 = 25 oz.\n2 pt 10 fl oz = 2 * 16 + 10 = 42 oz.\n\n3 qt = 6 pts = 12 cups = 96 oz.\n\n96 - 25 - 42 = 29 oz.\n\n29 oz. = 16 + 13 = 1 pt 13 oz.