Answer:
31.25
Step-by-step explanation:
31.25 is right.
It would be the first one... 10:25
10/4=2.5
2.5*10=25
2.5*4=10
The common divisor is the greatest natural number so that two or more natural numbers have no remainder. If is a common divisor of and , then and , where , . Then, we have the following expression: