Which expression is not equivalent to \frac{ {5}^(4) }{ {5}^(7) } ​

Question

Which expression is not equivalent to

`\frac{ {5}^(4) }{ {5}^(7) }`
​

Answer 1

Below.

Explanation:

5^4/5^7

= 5^(4-7)

= 5^-3 or 1/5^3.

Or we might write it as 1/125.