Enola's recipe for cookied calls for 2 1/2 cups of flour. If she wants to make 3/4 a batch of cookies, how much flour should she use?
1 batch = 2.5 cups flour
0.75 batch = ? cups flour
To get to 0.75 batch from 1 batch, we multiply by 0.75. We must therefore do the same to the right-hand side.
As Ms. Sue has said, the answer will be 2.5 x 0.75 = 1 7/8 cups
(3/4) * (5/2) = ?
1.875
Mr. Wade’s recipe for monster cookies calls for 2 1/2 cups of flour. If he wants to make 0.75 of a batch of cookies, how much flour should he use?
To find out how much flour Enola should use for 3/4 of a batch of cookies, you need to calculate 3/4 of 2 1/2 cups of flour.
First, let's convert the mixed number, 2 1/2, into an improper fraction.
2 1/2 = (2 * 2) + 1/2 = 4/2 + 1/2 = 5/2.
Next, multiply 5/2 (the amount of flour for a full batch) by 3/4 (the fraction representing 3/4 of a batch).
5/2 * 3/4 = (5 * 3) / (2 * 4) = 15/8.
So, Enola should use 15/8 cups of flour for 3/4 of a batch of cookies.
However, since fractions of cups are not very practical for measurements, let's convert it back to a mixed number.
Divide the numerator (15) by the denominator (8):
15 ÷ 8 = 1 remainder 7.
So, the mixed number is 1 7/8.
Therefore, Enola should use 1 7/8 cups of flour for 3/4 of a batch of cookies.