Subtraction: The top number is 39, and the number below it is 24. A line separates them, indicating subtraction. The result below the line is 15. This is correct because 39 - 24 = 15.
Division: To the right of the subtraction, there is a division setup. The number 12 is above the division line, and the number 2 is below it. This represents the division 12 ÷ 2.
Calculation: The result of the division 12 ÷ 2 is 6.
The subtraction result is 15. The division problem is 12 ÷ 2, which equals 6.