How do u do it it is really hard for me and i hate it

 He used 9 4/5 cups of tomato sauce in total. We also know he spent 4 1/5 + 3 2/5 which is 7 3/5. Now we can subtract. Make both numbers into improper fractions to get 49/5 - 38/5. We get 11/5, or 2 1/5. Hope this helped!

There isn’t anything wrong with not knowing it. So the total amount he used is 9 4/5. So the equation is 9 4/5 = 3 2/3 + 4 1/5 + X. So we solve for X. To solve for X we subtract 7 3/5 from each side. We get 7 3/5 because that is the amount of sauce he used for the other ingredients. And your answer is X = 2 1/5. Your answer is 2 1/5 cups. Btw use a sentence to answer this question.