(2) \( 7-4 \frac{1}{2} \)

To solve \( 7 - 4 \frac{1}{2} \), first, convert the mixed number into an improper fraction. \( 4 \frac{1}{2} \) equals \( \frac{9}{2} \). Subtracting this from 7 can be tricky, so convert 7 into a fraction: \( 7 = \frac{14}{2} \). Now, you have \( \frac{14}{2} - \frac{9}{2} = \frac{5}{2} \), which is equal to \( 2 \frac{1}{2} \) or 2.5. Next time you’re dealing with mixed numbers and whole numbers, remember to convert them into improper fractions before performing your operations. It makes your calculations smoother and reduces the chances of mistakes, especially in more complex equations!