$$\frac{{{2^7} \times {2^8}}}{{{2^3}}} = ?$$

$$2^{12}$$

Explanation

The rules for multiplying and dividing terms with exponents are:
$$a^{m} \times a^{n}=a^{m+n} ; \frac{a^{n}}{a^{n}}=a^{m-n}$$
$$\text { So } \frac{2^{4} \times 2^{3}}{2^{4}}=\frac{2^{13}}{2^{3}}=2^{15-3}=2^{12}$$