The answer would be 1/25
Step-by-step explanation:
First, we need to find the GCF of 625 and 78125. The GCF happens to be 625. So what we do with 625 is we divide it by the numerator and denominator. 625/625 = 1, and 78125/625 = 25. Therefore, our answer is 1 over 25, or 1/25.