Answer: 2 & 11/14 cups of flour
This is a mixed number with 2 as the whole part and 11/14 as the fractional part.
You may need to drop the ampersand sign and simply say 2 11/14
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Work Shown:
112 dozen muffins = 312 cups of flour
112/112 dozen muffins = 312/112 cups of flour
1 dozen muffins = 312/112 cups of flour
1 dozen muffins = (39*8)/(14*8) cups of flour
1 dozen muffins = 39/14 cups of flour
1 dozen muffins = (28+11)/14 cups of flour
1 dozen muffins = (28/14+11/14) cups of flour
1 dozen muffins = (2+11/14) cups of flour
1 dozen muffins = 2 & 11/14 cups of flour