Tomas bought a bottle of shampoo that held 10.5 fluid ounces. He uses 1/16 of the shampoo every time he washes his hair. How many ounces of the shampoo are left after he washes his hair 6 times?
10 1/2 * 16 = 21/2 * 1/16 = 21/32
21/32 * 6/1 = 12/32
126 / 32 = 3
8/16 + 16/16 = 24/16
10 1/2 - 3 15/16 = 6 9/16