Simplify the expression using the properties of exponents. Expand any numerical portion of your answer and only include positive exponents.

(2m*2n*−1/n*2)*3

To simplify the expression and expand any numerical portion, we will begin by simplifying the exponents and combining like terms.

First, let's simplify the numerator: (2m * 2n * -1)

2m * 2n * -1 = -2mn

Now, let's simplify the denominator: n * 2
Since the terms in the denominator have a different base (n and 2), we cannot combine them. So the denominator remains as n * 2.

Putting it all together, the expression becomes:

(-2mn / (n * 2)) * 3

Now, let's simplify the expression further by canceling out any common factors. Notice that n appears in both the numerator and denominator. Thus, we can simplify by canceling them out:

(-2m / 2) * 3

Simplifying further, we have:

-2m * 3

Finally, multiplying the coefficients, we get:

-6m

Therefore, the simplified expression using the properties of exponents and expanding the numerical portion is -6m.