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David has three bags of groceries weighing a total of 25 1/2 pounds. two of the bags weight 7 5/8 pounds and 4 3/4 pounds. how much does the third bag weigh?

User Jossie
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2 Answers

4 votes
So, we need to add 7 5/8 and 4 3/4 together.

7 5/8 + 4 3/4 = 12 3/8. (If you want to know how I added that, comment below )

So, now we need to subtract 25 1/2 - 12 3/8.

25 1/2 - 12 3/8 = 13 1/8 ( If you want to know how I subtracted comment below)

13 1/8 is your answer

Glad I could help, and good luck!

User Pointerless
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6.5k points
4 votes

Answer:

Weight of the third bag = 13
(1)/(8) pounds

Explanation:

If the two bags weigh 7 5/8 pounds and 4 3/4 ponds, to get the weight of the third bag, we will simply add this weight together, then subtract from th total weight which is 25 1/2.

That is;

7 5/8 + 4 3/4

7 5/8 =
(61 )/(8)

4 3/4 =
(19)/(4)

7 5/8 + 4 3/4 =
(61 )/(8) +
(19)/(4) =
(61 + 38)/(8) =
(99)/(8)

Weight of the third bag = 25 1/2 -
(99)/(8)

=
(51)/(2) -
(99)/(8)

=
(204 -99)/(8) = (105)/(8)

=13
(1)/(8)

Weight of the third bag = 13
(1)/(8) pounds

User Caverac
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7.2k points