one eight of a number reduced by three times the same number?

Do you mean one eighth of a number?/

If so...

(1/8)x -3x

1/8n - 3n

To solve the expression "one eighth of a number reduced by three times the same number," let's break it down step by step:

1. Let's define the unknown number in the expression as "x."

2. "One eighth of a number" can be written as (1/8) * x.

3. "Reduced by three times the same number" means we subtract 3 times x from the previous result.

Putting it all together, the expression becomes:
(1/8) * x - 3x.

Now, depending on the specific value of x, this expression can be simplified further. However, since you did not provide a specific value for x, we will leave it in this simplified form.