Question

Karen about a piece of that was cut into eight equal pieces she ate half of one piece what fraction of the whole pizza that she eat

Answer 1

She ate 1/16 of the whole pizza. It's 1/16 of a pizza because half of 1/8 is 1/16

Answer 2

If pizza has 8 pieces, then there are 7 1/2 pieces left.
She at 1/16 of the pizza.