Hi Nicole,
There are 3 people in this problem who will be receiving the same amount of pizza. Since we are starting with 5/6, we can divide by 3 to determine how much each person will receive. (Remember to multiply by the reciprocal of a fractional divisor).
5 ÷ 3 = 5 • 1 = 5
6 6 3 18
Each person will receive 5 of the pizza. The correct choice is letter A.
18