Question

Fill in the blank

$\left[\right]-\frac{13}{27}=\frac{8}{27}$

Answer 1

$$\begin{gathered} \left[\right]-\frac{13}{27}=\frac{8}{27} \\ \left[\right]=\frac{8}{27}+\frac{13}{27}=\frac{21}{27} \\ \left[\right]=\frac{21}{27} \end{gathered}$$

Hence, $\left[\frac{21}{27}\right]-\frac{13}{27}=\frac{8}{27}$