-3 over 4 divded by (- 1 9 over 12)=
To solve this problem, we need to perform the division operation between -3/4 and -1/9 over 12.
Recall that dividing by a fraction is the same as multiplying by its reciprocal. The reciprocal of a/b is b/a.
So, the first step is to find the reciprocal of -1/9, which is -9/1.
Now, we can rewrite the expression as (-3/4) * (-9/1) over 12.
Next, we can multiply the numerators and denominators separately:
(-3 * -9) / (4 * 1) over 12
This results in:
27 / 4 over 12
To divide fractions, we multiply by the reciprocal of the second fraction:
27 / 4 * 1 / 12
Multiplying the numerators and denominators gives:
27 / 48
Finally, we can simplify this fraction by dividing both numerator and denominator by their greatest common divisor, which is 3:
9 / 16
Therefore, -3/4 divided by -1/9 over 12 is equal to 9/16.