Question 313598
Alice at 1/4 of the pizza, leaving 3/4 of the pizza.  Bob ate 1/3 of 3/4 or 1/4 of the pizza.  This leaves 3/4 - 1/4 = 1/2 of the pizza for Christine.  Christine ate 1/2 of the 1/2 pizza which leaves 1/4 of the pizza left that they did not eat.


Dr. Robert J. Rapalje, Retired