Peanut butter cookies. 1 3/8 cup of butter and 5/8 cup of peanut butter. How much more butter is needed than peanut butter?
1 3/8 = 1 + 3 / 8 = 8 / 8 + 3 / 8 = 11 / 8
( 1 3/8 ) / ( 5 / 8 ) =
( 11 / 8 ) / ( 5 / 8 ) =
( 8 * 11 ) / ( 8 * 5 ) =
11 / 5 =
10 / 5 + 1 / 5 =
2 + 1 / 5 =
2 1/5 =
2.2
To find out how much more butter is needed than peanut butter, we need to subtract the amount of peanut butter from the amount of butter.
Given:
Amount of butter = 1 3/8 cup
Amount of peanut butter = 5/8 cup
To subtract fractions, we need to have the same denominator.
Let's convert the mixed fraction (1 3/8) to an improper fraction.
1 3/8 = (8 * 1 + 3) / 8 = 11/8
Now that we have the same denominator (8), we can subtract the fractions:
11/8 - 5/8 = (11 - 5) / 8 = 6/8
Simplifying 6/8, we get:
6/8 = (2 * 3) / (2 * 4) = 3/4
Therefore, there is 3/4 cup more butter needed than peanut butter.