I need help I'm in 5th grade

C. 3 5/18

Step-by-step explanation:

What we know:

Joel purchased 5 7/9 lb of grapes, while Jim purchased 2 1/2 lb.

What we need to find out:

How many more pounds of grapes does Joel have than Jim.

What we need to do:

Subtract 2 1/2 from 5 7/9.

But first, we need a common denominator.

2 and 9 don't have any common factors so multiply normally.

2 * 9 = 18

5 7/9 becomes 5 14/18, and 2 1/2 becomes 2 9/18.

Now to subtract.

(5 - 2) + ((14-9)/18)

3 + ((14-9)/18

3 + 5/18

Joel has 3 5/18 more pounds of grapes than Jim, so the answer is C.

21$

Step-by-step explanation: