Answer: 2 15/22
Step-by-step explanation: To solve this, let's first turn the mixed numbers into improper fractions. When we do so, we get 13/2 and 42/11. Now, we make a common denominator. We can turn both denominators into 22. When we do so, we get 143/22 and 84/22. Now, we subtract. When we subtract the two fractions, we get 2 15/22.