Final answer:
To simplify the fraction 9/12 to lowest terms, divide both the numerator and denominator by the greatest common factor (GCF) of the two numbers, which in this case is 3. The simplified fraction is 3/4.
Step-by-step explanation:
To simplify the fraction 9/12 to lowest terms, we need to find the greatest common factor (GCF) of 9 and 12. The GCF is the largest number that divides evenly into both numbers.
In this case, the GCF of 9 and 12 is 3. To simplify the fraction, we divide both the numerator and denominator by the GCF:
9 ÷ 3 = 3
12 ÷ 3 = 4
The simplified fraction is 3/4.