Question

Ansley and Maria were baking a birthday cake. The recipe called for 2 3/4 cup of flour. Both girls took turns pouring in the flour. Maria poured in 1 2/4 cup of flour into the mixing bowl and then Ansley poured in the remaining amount.

Which of these equations BEST tells how to identify the amount of flour Ansley poured into the mixing bowl?
A- 11/4 - 5/4 = 6/4
B- 11/6 - 6/4 = 5/4
C- 1 2/4 + 2 3/4 = 4 1/4
D- 6/4 + 5/4 = 11/4

Answer 1

A- 11/4 - 5/4 = 6/4

The recipe needs 2 3/4 in total so you need to subtract 1 2/4 from it. You can do this by using the improper fractions 11/4 for 2 3/4 and 5/4 for 1 2/4.

Answer 2

Answer: Flour is the ingredient you need the most as it is 21/3 = 7

baking soda is the ingredient you need the least as it is 2/3 = 0.6