David ate 3 2/3 apples and Jamal ate 5 3/9 apples. If they finished all the apples in a box, how many apples were in the box?(1 point)

1. 9
2. 8
3. 8 5/12
4. 2

1 answer

To find out how many apples were in the box, add the amounts of apples David and Jamal ate:

3 2/3 + 5 3/9

First, convert the mixed numbers to improper fractions:
3 2/3 = 11/3
5 3/9 = 56/9

Now add the fractions:
11/3 + 56/9

To add fractions, find a common denominator, which in this case is 9:
11/3 = 33/9

Now add the fractions:
33/9 + 56/9 = 89/9

Converting the fraction back to a mixed number:
89/9 = 8 5/12

So, the answer is option 3: 8 5/12.