Answer:
1/2 hour
Step-by-step explanation:
1. To solve this problem, let's first round Maria and Juan's fractions to a friendly fraction.
- 9/10 is close to 1 whole or 10/10, so 9/10 becomes 10/10.
- 2/6 is close to 1/2 or 3/6. Since Maria's fraction is 10/10, let's make 1/2 into 5/10. Therefore, 2/6 becomes 5/10.
2. Since we want to find out how much more time Maria spent on her project, we subtract 5/10 from 10/10.
- 10/10 - 5/10 = 5/10
- 5/10 = 1/2
Therefore, the answer is 1/2 hour.
