Answer: 1/2
Step-by-step explanation:
First try to find the relationship between 6 and 12. What is their greatest common factor? As we may know 6 and 12 can both be divided by 6, 6 divide by 6 is 1, while 12 divide by 6 is 2. Put them into a fraction which is 1/2. The final answer will be 1/2.