Answer:
31/256
Explanation:
0.12109375 = 12109375/100000000
= 31/256
Dividing numerator and denominator by 390625.. we have the simplest solution
You can start out by dividing by 5 the numerator and denominator.you would see this division by 5 goes on 8 times
Or you can start out dividing both numerator and denominator by 25, we see this division goes on 4 times