Here's your problem:
\(4 \frac{1}{2} - \frac{3}{4}\)
Now, we are going to convert \(4 \frac{1}{2}\), what you are going to do is multiply the whole number times the denominator.
4 times 2 = 8 + 1 = 9 over the same denominator = 9/2
So:
\(\frac{9}{2}\) \(- \frac{3}{4}\)
\(\frac{15}{4}\)
Answer:
\(3\frac{3}{4}\)
Good luck with your studies, I hope this helps~!