Question

Find the product. Simplify if possible

−1/3⋅(8 1/7)

A)-3/8
b)-2 5/7
C)1/3
D)-1/21

Answer 1

b

change the mixed number to an improper fraction

8
`(1)/(7)` =
`(57)/(7)`

-
`(1)/(3)` ×
`(57)/(7)` = -
`(19)/(7)` = - 2
`(5)/(7)` → b

Answer 2

−1/3⋅(8 1/7)

change 8 1/7 to an improper fraction

8 1/7 = (7*8 +1)/7 = 57/7

-1/3 * 57/7

-57/21

21 goes into 57 2 times with 15 left over

-2 15/21

divide top and bottom of the fraction by 3

-2 5/7

Choice B