3. To make a cake, Rose needed \( 1 \frac{1}{2} \) cups of sugar. This is \( 1 \frac{1}{4} \) cups less than the amou of flour she needed for the cake. Write a subtraction equation that could be used to find the amount of flour she needed for the cake. (Example 1)

To find the amount of flour Rose needed, you can set up the equation by stating that the amount of flour \( F \) is equal to the amount of sugar plus the difference given. Since the sugar is \( 1 \frac{1}{2} \) cups and the difference is \( 1 \frac{1}{4} \) cups, the subtraction equation can be described as: \[ F = 1 \frac{1}{2} + 1 \frac{1}{4} \] This way, you're adding the sugar amount and the difference to find the total amount of flour she needed for the cake! After you've set up the equation, you can easily convert the mixed numbers into improper fractions to solve. Remember, \( 1 \frac{1}{2} \) is \( \frac{3}{2} \) and \( 1 \frac{1}{4} \) is \( \frac{5}{4} \). If you add these two improper fractions, you'll find how much flour Rose needs without any stress!