Question

Fill in the blanks:

$8\frac{1}{8}-.....=\frac{7}{8}$

Answer 1

Let the value in the blank be x.

$$\begin{gathered} 8\frac{1}{8}-x=\frac{7}{8} \\ \Rightarrow \frac{65}{8}-x=\frac{7}{8} \\ \Rightarrow \frac{65}{8}-\frac{7}{8}=x \\ \Rightarrow x=\frac{65-7}{8} \\ \Rightarrow x=\frac{58}{8} \\ \Rightarrow x=7\frac{2}{8} \end{gathered}$$

Thus, $8\frac{1}{8}-\underline{7\frac{2}{8}}=\frac{7}{8}$.