Step-by-step explanation:
The first number in the sequence is -6.
The second number is -3, which is 1/2 the first number.
The third number is -2, which is 2/3 the second number.
The fourth number is -3/2, which is 3/4 the third number.
The fifth number is -6/5, which is 4/5 the fourth number.
So the pattern is:
![a_{n} = a_{n-1} \frac{n-1}{n}](https://tex.z-dn.net/?f=a_%7Bn%7D%20%3D%20a_%7Bn-1%7D%20%5Cfrac%7Bn-1%7D%7Bn%7D)