Jenny is making her famous brownies. In each tray, some pieces have salted caramel swirls, some have fresh strawberries, and the rest have both toppings. Use area models to multiply fractions and figure out how many pieces have both toppings. Remember to write your answer in simplified form!

Area models are a handy tool for solving multiplication problems. Here's how you'll do it for 2/3 x 3/5: Start by dividing the area model vertically into three equal parts and shade two to represent 2/3. Then, divide the same area model horizontally into five equal parts and shade three to represent 3/5. Count the total number of sections in the area model and how many are shaded twice to get 6/15. But wait, don't forget to check if the numerator and denominator share any common factor other than 1. In this case, they share 3. Divide both the numerator and denominator by 3 to get your final answer: 2/5. Now, grab your pencil and complete the brownie challenge!