Final answer:
The missing factor in the multiplication operation can be found by dividing the product by the known factor. In this case, the other factor is 5.
Step-by-step explanation:
To solve this problem, we can use the principle of multiplication and division. The product of two numbers (in this case, a fraction and a number) is found by multiplying those two numbers. If we are given the product and one of the numbers, we can find the missing number (the other factor) by dividing the product by the given number.
Here the product of the fraction and a number is 71/2 or 7.5 in decimal form; one of the factors is 11/2 or 1.5 in decimal form.
So, the other factor/missing number = Product / Known factor = 7.5/1.5 = 5
Therefore, the other factor or the missing number is 5.
Learn more about Multiplication and Division