Question

I am having a lot of difficulty please help.

Eva wants to make two pieces of pottery. She needs 3/5 pound of clay for one piece and 7/10 pound of clay for the other piece. She has three bags of clay that weigh 4/5 pound each. How many bags of clay will Eva need to make both pieces of pottery? How many pounds of clay will she have left over?

Answer 1

6/10 + 7/10 = 13/10 needed

each bag is 8/10

so two bags is enough, 16/10

from the secondbag 3/10 is left over plus the entire third bag
so
remainder = 11/10 or 1 1/10

Answer 2

How did you get 6/10? Where did you come up with 6/10?