Celeste and her family ate lasagna for dinner on Friday night and had 1_2 half of the pan left over. On Saturday night, Celeste ate3_8ths of what was left. How much of the lasagna did Celeste eat on Saturday night?

5/16

Think about it like this. You have two halves of the lasagna, each split into 8 parts for a total of 16 pieces. Friday, Cecelia and her family ate 8 of these 16 pieces, or 1/2 the total lasagna. The next night, Cecilia ate 3 more. That makes for a total of 11 pieces out of 16 eaten, leaving 5 remaining