Sadie

Sadie practiced her spelling words for 3/4 of an hour, and Max practiced his spelling words for 5/12 of an hour. In the simplest form, how much longer did Sadie practice than Max?

Final Answer:

x =  1/3 h

Step-by-step explanation:

$$\begin{gathered} s=\frac{3}{4}=0.75\text{h} \\ m=\frac{5}{12}\doteq 0.4167\text{h} \\ x=s-m=\frac{3}{4}-\frac{5}{12}=\frac{9}{12}-\frac{5}{12}=\frac{9-5}{12}=\frac{4}{12}=\frac{1}{3}\text{h}=0.3333\text{h} \end{gathered}$$

Try another example