Answer:
[tex]- \frac{665}{8}[/tex]
Step-by-step explanation:
It is not hard when you know what to do, so here is what to do :D
First, let's turn the mixed numbers into improper fractions:
-9 [tex]\frac{1}{2}[/tex] -> 9*2 = 18 -> 18 + 1 = 19 -> [tex]\frac{19}{2}[/tex] -> -
8 [tex]\frac{3}{4}[/tex] -> 8 * 4 = 32 -> 32 + 3 -> [tex]\frac{35}{4}[/tex]
Now, we have one negative number, so our answer will be negative.
(negative times a negative is a positive, but we only have one negative)
Next, we multiply across:
[tex]-\frac{19*35}{2*4}=-\frac{665}{8}[/tex]
And there is our answer of [tex]- \frac{665}{8}[/tex]
Check:
To check I turned them into the decinmals of -[tex]\frac{19}{2}[/tex] -> -9.5 and [tex]\frac{35}{4}[/tex] -> 8.75, multiplied them together, and did get -83.125 -> [tex]- \frac{665}{8}[/tex]
