Answer:
oranges lasts for 9 days
Explanation:
To find out the number of days, we have to divide the total oranges by the quatity of oranges used each day.
Number of days = Total oranges ÷ number of oranges used per day
![\sf = 7(7)/(8) \ / (7)/(8)\\\\ = (63)/(8) \ / (7)/(8)\\\\ =(63)/(8) * (8)/(7)\\\\ = 9](https://img.qammunity.org/2023/formulas/mathematics/high-school/f6ou13u4vk0g3xifu4oqxg9pd67nlmfeul.png)
Fraction division:
Keep the first fraction
Change division to multiplication
Flip the second fraction