Answer: 2/3
Step-by-step explanation: To write the fraction 8/12 in lowest terms, we divide the numerator and the denominator by the greatest common factor of 8 and 12.
Since the factors of 8 are 1, 2, 4, and 8 and the factors of 12 are 1, 2, 3, 4, 6, and 12, the greatest common factor of 8 and 12 is 4. So we divide the numerator and the denominator of 8/12 by 4 to get 2/3.
I have shown my work in the image attached.
So, your answer is 2/3.