Question

What is the difference :8/7-1/3
-31/21
--7/4
-17/21
-4/7

Answer 1

`(8)/(7) - (1)/(3) = (17)/(21)`

because in order to solve you need to get the common denominator, which in this case is 21...


`(3)/(3) ( (8)/(7) ) = (24)/(21)`


`(7)/(7) ( (1)/(3) ) = (7)/(21)`

and now that you have a common denominator you can complete the operation...


`(24)/(21) - (7)/(21) = (17)/(21)`

Answer 2

8/7-1/3

Make both fractions have the same common denominator

24/21 - 7/21

Subtract the numerators while keeping the denominator the same

Final Answer: C. 17/21