Question 893854
you are probably showing this problem wrong because 6/7/8 is the same as 6/7/8 and there is no difference.


you need to use parentheses to show what is really happening.


from what i can make out, i believe you problem should be:


by how much does 6 / (7/8) exceed (6/7) / 8


the parentheses are important to show which operations are performed together.


6 / (7/8) is the same as 6 * (8/7) which is the same as (6*8) / 7 which is equal to 48/7.


(6/7) / 8 is the same as (6/7) * (1/8) which is the same as (6*1) / (7*8) which is equal to 6/56 which can be simplified to 3/28.


your question becomes:


by how much does 48/7 exceed 3/28?


to find the answer you need to subtract 3/28 from 48/7


to subtract them you need to get them to have the same denominator.


if you multiply 48/7 by 4/4 you will get 192/28


now you can subtract them because they have the same denominator.


192/28 - 3/28 = 189/28


that's your answer.