Answer: 1 and 13-sixteenths of a pizza
Explanation:
We start out with a total of 5 + (7/8) pizzas.
She gives away 4 + (1/16) pizzas.
So the expression is : 5 + (7/8) - 4 - (1/16) = left over
= (5 - 4) + 7/8 - 1/16
= 1 + 14/16 - 1/16
= 1 + 13/16
So she has 1 and 13-sixteenths of a pizza