Doubling the recipe for a chocolate cake. The cake requires 2 3/4 cups of flour and 1 1/3 cup of sugar. how much flour and how much sugar will be needed?

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Answer 1 · 2018-05-24T17:45:55

Flour #= 5 1/2 \ "cups"#

Sugar #= 2 2/3 \ "cups"#

If you transfer these fractions into mixed fractions, you get

#2 3/4 = (2 xx 4 + 3)/4 = 11/4#

for flour and

#1 1/3 = (1 xx 3 + 1)/3 = 4/3#

for sugar, which then must be doubled, so you get

#11/4 xx 2 = 22/4 -># flour

and

#4/3 xx 2 = 8/3 -># sugar

which translates to #5 1/2# flour and #2 2/3# sugar.