Question

Ms. Flores used 2/3 stick of butter to make brownies and 1/8 stick of butter to make cookies. What fraction of a stick of butter did she use to make the brownies and cookies?

a) 1/2 stick
b) 5/24 stick
c) 11/24 stick
d) 3/4 stick

Answer 1

The correct answer is 19/24 of a stick of butter, which comes from adding 2/3 (equivalent to 16/24) of a stick for brownies and Option B....1/8 (equivalent to 3/24) of a stick for cookies.

Step-by-step explanation:

The correct answer is option c) 11/24 stick.

To calculate the total fraction of butter used, we need to add the fractions of butter used for brownies and cookies together. Ms. Flores used 2/3 of a stick for brownies and 1/8 of a stick for cookies. When adding fractions, the denominators must be the same. We find a common denominator, which in this case is 24.

Multiplying the numerator and denominator by the same number to get equivalent fractions, we have:

2/3 = 16/24 (multiplied by 8)

1/8 = 3/24 (multiplied by 3)

Now we add:

16/24 + 3/24 = 19/24

Therefore, Ms. Flores used 19/24 of a stick of butter in total for both brownies and cookies.