Question

Mary has 16 3/4cups of flour she made one dessert that used 1 1/3cups and another than used 2 5/12cups how much flour does Mary have left after making the two desserts?

Answer 1

$16 \dfrac{3}{4} - 1 \dfrac{1}{3} - 2 \dfrac{5}{12}$

$= 16 \dfrac{3 \times 3}{4 \times 3} - 1 \dfrac{1\times 4}{3 \times 4} - 2 \dfrac{5}{12}$

$= 16 \dfrac{9}{12} - 1 \dfrac{4}{12} - 2 \dfrac{5}{12}$

$= 13$

------------------------------------------------
Answer: Mary has 13 cups left.
------------------------------------------------

Answer 2

Answer: 13

Step-by-step explanation:

Mary has 16 3/4 cups of flour

She uses 1 1/3 cup and 2 5/12, we add the amount she uses together

1 1/3 + 2 5/12

4/3 + 29/12 = 16 + 29 / 12

=45/12 = 15/4

Amount left = amount has - amount used.

16 3/4 = 67 / 4

Amount left = 67 / 4 - 15 / 4

=52 / 4 =13