The correct option is B 8
From the distributive property, the numerator of a division can be written as the sum of smaller numbers.
48 can be split as 40 + 8.
Using the distributive property of division, we get:
48 ÷ 2 = (40 + 8) ÷ 2
= (40 ÷ 2) + (8 ÷ 2)
Therefore, the missing number is 8.