-3 7/12 X -6/7

To multiply -3 7/12 by -6/7, we first need to convert -3 7/12 to an improper fraction.

-3 7/12 = -3 * 12 + 7 / 12 = -36 + 7 / 12 = -29 / 12

Now, we multiply -29 / 12 by -6/7:

(-29/12) * (-6/7)
= (29 * 6) / (12 * 7)
= 174 / 84
= 29 / 14

Therefore, -3 7/12 times -6/7 is equal to 29/14.