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?

Answer 1

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