Please help, -3xyz for x = -3/4 , y = 5/9 and z = -8/15

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Please help, -3xyz for x = -3/4 , y = 5/9 and z = -8/15

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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Its evaluate
Replace the variable with the numbers they're equal to \[-3\left(- \frac{ 3 }{ 4 } \right)\left( \frac{ 5 }{ 9 } \right)\left(- \frac{ 8 }{ 15 } \right)\] You can write 3 as 3/1 if it makes it easier \[\left(- \frac{ 3 }{ 1 } \right)\left(- \frac{ 3 }{ 4 } \right)\left( \frac{ 5 }{ 9 } \right)\left(- \frac{ 8 }{ 15 } \right)\] From here, you can cancel common factors and then multiply. Or multiply and then reduce at the end
I did that, but my teacher was like no.

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- 9 / 4?
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lol what the heck! ? ahh
im confused now
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There are 3 negative signs, so the answer is negative. So you're left with -2/3
oh okay, i think i understand!
if i were to show my work how could i do it an easy way to read?
It's definitely better to cancel when you can because then you're not left with big numbers, and you might not even have to multiply anything. To show your work, maybe write the problem once, then write it again showing the canceling. Your teacher should understand that as written, it's pretty common
put it like this
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That second line probably isn't necessary. It just helps with readability.
lol okay, thanks!
i have a quiz tommorow so thats why i have to show my work.
ah ok. You're welcome :)

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