166k views
4 votes
Find the product. Simplify if possible

−1/3⋅(8 1/7)

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

User Silverspur
by
7.5k points

2 Answers

7 votes

b

change the mixed number to an improper fraction

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

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



User Ricardo Ferreira
by
8.1k points
4 votes

−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

User Leonidas
by
8.3k points

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