We can calculate how much more Sadie practice than Max by substracting the time that Max practice (5/12) from the time that Sadie practiced (3/4):
[tex]\frac{3}{4}-\frac{5}{12}=\frac{3}{4}\cdot\frac{3}{3}-\frac{5}{12}=\frac{9}{12}-\frac{5}{12}=\frac{9-5}{12}=\frac{4}{12}=\frac{1}{\frac{12}{4}}=\frac{1}{3}[/tex]Answer: Sadie practiced 1/3 of an hour more than Max.
