Answer:
He will have 11/32 of an ounce for each of the two rings.
Step-by-step explanation:
He starts with 7/8 of an ounce.
He gives 3/16 of an ounce to Julie.
7/8 - 3/16 = 14/16 - 3/16 = 11/16
He now has 11/16 of an ounce left.
Now he divides 11/16 of an ounce in half.
(11/16) / 2 = 11/16 * 1/2 = 11/32
He will have 11/32 of an ounce for each of the two rings.