So, here's the problem:
-3/2รท2/-6
When dividing fractions, you flip the second fraction and multiply the result.
Like this:
-3/2*-6/2
Then, you just multiply the numerators (top numbers) and the denominators (bottom numbers) together.
-3*-6=18
2*2=4
18/4 can be reduced to 9/2 or 4 and 1/2 (4.5).