Final answer:
Jessica completed 5/8 of the crossword on Wednesday and 3/8 on Thursday, totaling to 8/8 or a full crossword. Therefore, the correct answer should be equivalent to the full crossword, which is not listed among the provided options. The correct final fraction is 1, or 8/8, showing the completion of the crossword.
Step-by-step explanation:
Jessica completed 5/8 of a crossword on Wednesday and 3/8 of the crossword on Thursday. To find the total fraction of the crossword she completed, we add the two fractions together:
- Wednesday: 5/8
- Thursday: 3/8
To add these fractions, since they have the same denominator, we simply add the numerators:
5/8 + 3/8 = 8/8
Now, 8/8 is equal to 1, which means she has completed the entire crossword. Therefore, the total fraction of the crossword that Jessica completed is neither 11/8, 19/8, nor 3/8. The correct answer is 7/8, but since our added fractions equal to 1, which is equivalent to 8/8, there must be a mistake in the question statement or the answer options provided. She completed the entire crossword, so the answer should reflect that completion.