Stephanie has a recipe that calls for StartFraction 2 over 3 EndFraction tablespoons of vanilla to make 3 and StartFraction 1 over 2 EndFraction dozen cookies.
How many tablespoons of vanilla are needed per dozen cookies?
Answer options with 4 options
A.
1 over 21
B.
1 over 7
C.
4 over 21
D.
3 over 7
To find the amount of tablespoons of vanilla needed per dozen cookies, we need to divide the total amount of tablespoons by the number of dozens.
The total amount of tablespoons is 2/3 tablespoons.
The number of dozens is 1/2 dozen.
To divide fractions, we multiply the first fraction by the reciprocal of the second fraction:
2/3 tablespoons ÷ 1/2 dozen
Reciprocal of 1/2 is 2/1:
2/3 tablespoons × 2/1 dozen
Multiplying the numerators gives us:
2 x 2 = 4 tablespoons
So, the answer is C. 4/21.