(- 3/5) × (5/16) × (7/12) ÷ (- 3/16) × (- 5/7)

Let's simplify the expression step by step.

(-3/5) × (5/16) × (7/12) ÷ (-3/16) × (-5/7)

First, let's simplify the multiplication:

(-3/5) × (5/16) = -15/80 = -3/16

Now, the expression becomes:

(-3/16) × (7/12) ÷ (-3/16) × (-5/7)

Next, simplify the division:

(7/12) ÷ (-3/16) = (7/12) × (-16/3) = -112/36 = -28/9

Now the expression is:

(-3/16) × (-28/9) × (-5/7)

Finally, multiply the fractions:

(-3/16) × (-28/9) × (-5/7) = 420/1008

To simplify this fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 84:

420/1008 = (420/84) / (1008/84) = 5/12

Therefore, the expression (-3/5) × (5/16) × (7/12) ÷ (-3/16) × (-5/7) simplifies to 5/12.