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The text in the image reads:

"Acacia was tasked with grading \(\frac{7}{8}\) of a student design project for her final exam. How much did Acacia leave for her final exam?"

To express this answer in a mixed number format, first we need to understand the situation described:

1. **Task Requirement**:  
   Acacia was required to grade \(\frac{7}{8}\) of the project.

2. **Remaining Task**:  
   The question asks how much she left for the final exam, which implies the remaining portion of the project.

To find the remaining portion:

\[
\text{Remaining Portion} = 1 - \frac{7}{8}
\]

Subtracting:

\[
1 - \frac{7}{8} = \frac{8}{8} - \frac{7}{8} = \frac{1}{8}
\]

Thus, the amount Acacia left for her final exam is \(\frac{1}{8}\).

Since \(\frac{1}{8}\) is already in its simplest form and is less than 1, it does not need to be expressed as a mixed number. 

However, if you specifically need a mixed number, \(\frac{1}{8}\) can be written as:

\[
0 \frac{1}{8}
\]

Would you like further clarification on this problem, or do you have additional questions?

Here are five related questions to think about:

1. What if Acacia was required to grade \(\frac{5}{8}\) instead? How much would remain?
2. How would the remaining fraction change if the project had been divided into 16 parts?
3. If Acacia completed \(\frac{7}{8}\) in 2 hours, how long would it take to finish the remaining \(\frac{1}{8}\)?
4. How can you express fractions like \(\frac{7}{8}\) as percentages?
5. What would the remaining portion be if Acacia had graded \(\frac{3}{4}\) of the project?

**Tip:** When subtracting fractions, ensure that they have a common denominator to make the process straightforward.

Learn how to calculate the remaining portion of a project after grading \(\frac{7}{8}\) of it. This problem involves fractions and subtraction of fractions. Suitable for students in Grades 4-6.

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