Question 891128: The question Is about expressions. I am not completely sure how to solve (-9)(8)(-5/6). Could you walk be through the question? Found 2 solutions by Edwin McCravy, josmiceli:Answer by Edwin McCravy(20055) (Show Source):
Make the -9 and the 8 into fractions by putting
1 underneath:
Now notice that the answer is going to be positive because
(-)(+)(-) is +
The 9 on the top and the 6 on the bottom have a common
factor of 3, so we divide 9 by 3 and get 3 and divide
6 by 3 and get 2:
Then you can divide the 2 in the bottom into the 8 on top,
getting 4 on top
So it's just 3×4×5 = 12×5 = 60 because the 1's on the bottom
just give 1, and dividing by 1 just gives the same thing, 60.
Edwin
You can put this solution on YOUR website! To deal with just the signs:
( - ) x ( - ) = ( + )
( - ) x ( + ) = ( - )
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If your factors have an odd number of
minuses, then you get a minus result:
( - ) x ( - ) x ( + ) x ( - ) = ( - )
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If your factors have an even number of
minuses, then you get a plus result:
( - ) x ( + ) x (- ) = (+ )
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Multiply the 1st two factors:
Now divide the into
Now use the multiplication rule for signs
Hope this helps
