Question

What do I do to compute the exact average of the fractions, in decimal form?

Answer 1

`\begin{gathered} 0.2=(2)/(10) \\ \text{then} \\ (1)/(0.2)=(1)/((2)/(10))=(10)/(2)=5 \end{gathered}`
`\begin{gathered} (0.2)/(1)=0.2 \\ (0.2)/(0.1)=(2)/(1)=2 \end{gathered}`

Average is computed as follows:

`\begin{gathered} \text{Avg=}\frac{\text{ sum of terms}}{\text{ number of terms}} \\ \text{Avg}=(5+0.2+2)/(3) \\ \text{Avg}=(7.2)/(3) \\ Avg=2.4 \end{gathered}`