The number of cups as an improper fraction would be 10/3. You can multiply the whole number (3) by the denominator in the fraction (3) to get the number of 1/3 cups in 3 full cups. This would equal 9, or 9/3. And, since you already had a third of a cup in your total, you would add that to the 9/3 cups. So, you would have 1/3 + 9/3 = 10/3 cups