Answer: False
Step-by-step explanation:
In the fraction 5/7, both 5 and 7 are prime numbers. This fraction is already fully simplified.
In the fraction 9/12, we can see some common factors. Both are divisible by 3. 9 / 3 = 3 and 12 / 3 = 4. We end up with 3/4.
3/4 ≠ 5/7, so this proportion is false.
