Roman C. answered • 11/20/12

Masters of Education Graduate with Mathematics Expertise

The way you wrote the equation, you must divide 6 by 12 to get 0.5 and add that to the product 9*18*6=972. So 972.5 is the answer.

On the other hand, if you had (9*18*6+6)/12, then you would add 6 first because it's inside of the parentheses, and contents inside parentheses must be evaluated completely before anything outside parentheses is worked. So (9*18*6+6)/12 = (972+6)/12 = 978/12 = 81.5 would be the answer.