Question

Pls help I cant do this this is hard

Answer 1

Answer:

$- \frac{665}{8}$

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 $\frac{1}{2}$ -> 9*2 = 18 -> 18 + 1 = 19 -> $\frac{19}{2}$ -> -

8 $\frac{3}{4}$ -> 8 * 4 = 32 -> 32 + 3 -> $\frac{35}{4}$

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:

$-\frac{19*35}{2*4}=-\frac{665}{8}$

And there is our answer of $- \frac{665}{8}$

Check:

To check I turned them into the decinmals of -$\frac{19}{2}$ -> -9.5 and $\frac{35}{4}$ -> 8.75, multiplied them together, and did get -83.125 -> $- \frac{665}{8}$

Answer 2

Answer:

−83$\frac{1}{8}$

answer above is correct but this is more simplified!