Question

At a farm, Justin picks 3 bushels of fruit. The bushels weigh 8 1/4 pounds, 6 1/2 pounds and 6 5/8 pounds. What is the average weight per bushel .

Answer 1

The average weight is 7 1/8 pounds

Explanation:

To find the average, we add them up and then divide by how many

average = (b1+b2+b3)/3

= (8 1/4 + 6 1/2+ 6 5/8) /3

Let look at the sum

(8 1/4 + 6 1/2+ 6 5/8)

We need to get a common denominator of 8

8 1/4 *2/2 + 6 1/2 *4/4 + 6 5/8

8 2/8 + 6 4/8 + 6 5/8

20 11/8

20 + 1 3/8

21 3/8

average = (21 3/8) /3

Now we divide by 3

We need to change the mixed number to an improper fraction

21 3/8 = (8*21+3) /8 = 171/8

average = (171/8) /3

We can use copy dot flip

171/8 * 1/3

171/24

We need to change it back to a mixed number

24 goes into 171 7 times with 3 left over

7 3/8

7 1/8