Final answer:
Two equivalent fractions that represent the fraction of the milkshake that is vanilla are 1/3 and 4/12.
Step-by-step explanation:
To find two equivalent fractions that represent the fraction of the milkshake that is vanilla, we need to use the information given. The milkshake has 12 ounces in total, and 4 ounces are vanilla. This means the fraction of the milkshake that is vanilla can be represented as 4/12. To find equivalent fractions, we can simplify this fraction by dividing both the numerator and denominator by their greatest common divisor, which is 4 in this case. Dividing 4 by 4 gives us 1, and dividing 12 by 4 gives us 3. Therefore, two equivalent fractions that represent the fraction of the milkshake that is vanilla are 1/3 and 4/12.