Charlotte is making 6 pounds of trail mix using raisins and 3 different types of nuts. The table shows the amounts of different types of nuts that she has.
Type of Nut Amount (in pounds)
almonds
7/8
cashews
1 1/2
peanuts
2 3/8
pecans
1 1/4
walnuts
1 3/4
Charlotte uses all of the almonds, cashews, and peanuts that she has.
Which of the following explains how she can find the exact amount of raisins she needs?

A.
Round
7
8
pound to 1 pound,
1
1
2
pounds to 2 pounds, and
2
3
8
pounds to 2 pounds.
Then add the rounded amounds and subtract that total from 6 pounds.

B.
Add
7
8
pound,
1
1
2
pounds,
2
3
8
pounds,
1
1
4
pounds, and
1
3
4
pounds.
Then subtract 6 pounds from that total.

C.
Subtract
7
8
pound from 6 pounds, subtract
1
1
2
pounds from 6 pounds, and subtract
2
3
8
pounds from 6 pounds. Then add all three differences.

D.
Add
7
8
pound,
1
1
2
pounds, and
2
3
8
pounds.
Then subtract that total from 6 pounds.