Answer:
He would need 2 3/4 more white paint to get 4 1/2.
Step-by-step explanation:
[tex]4\frac{1}{2} - 1\frac{1}{4} = 3\frac{1}{4} \\3\frac{1}{4} - \frac{3}{6} =2\frac{3}{4}\\[/tex]
Simplify:
[tex]3\frac{1}{4} - \frac{1}{2} = 2\frac{3}{4}[/tex]
Hope this helps.