To simplify \(8^5 / 8^7\) and write it without negative exponents, you can use the properties of exponents. When you divide two numbers with the same base, you subtract the exponents:

Now, to write it without negative exponents, you can reciprocate the base and make the exponent positive:

So, \(8^5 / 8^7\) simplifies to \(1/64\).