(- 3)÷(3/4)x(2/7)x(- 5/16)÷(5/7]

To solve this expression, we need to follow the order of operations (PEMDAS).

First, we simplify the inside of the brackets:

(- 3) ÷ (3/4) x (2/7) x (- 5/16) ÷ (5/7)
= -3 ÷ (3/4) x (2/7) x (-5/16) ÷ (5/7)

Next, we simplify the division:

= -3 x (4/3) x (2/7) x (-5/16) ÷ (5/7)
= (-3 x 4 x 2 x -5) ÷ (3 x 7 x 16 ÷ 5)

Now, we multiply:

= (-60) ÷ (336/5)

To divide by a fraction, we can multiply by its reciprocal:

= (-60) x (5/336)
= -300 / 336
= -25/28

So, (- 3) ÷ (3/4) x (2/7) x (- 5/16) ÷ (5/7) equals -25/28.

To simplify the given expression (-3) ÷ (3/4) x (2/7) x (-5/16) ÷ (5/7), you can follow these steps:

Step 1: Simplify inside the parentheses, starting with the division:

(-3) ÷ (3/4) x (2/7) x (-5/16) ÷ (5/7)

Step 2: Division of fractions can be performed by multiplying the first fraction by the reciprocal of the second fraction:

(-3) x (4/3) x (2/7) x (-5/16) ÷ (5/7)

Step 3: Next, you can cancel out any common factors between the numerators and denominators:

(-3) x (4/3) x (2/7) x (-5/16) ÷ (5/7)
= (-3) x (4/3) x (1/1) x (-5/16) ÷ (1/1)

Step 4: Multiply the numerators together and the denominators together:

(-3 x 4 x 1 x -5) / (3 x 7 x 16 x 5)

Step 5: Simplify the numerator and denominator separately:

Numerator: (-3 x 4 x 1 x -5) = -60
Denominator: (3 x 7 x 16 x 5) = 1680

Step 6: Divide the numerator by the denominator:

-60 ÷ 1680

Step 7: Determine if simplification is possible by finding any common factors between the numerator and denominator. In this case, both numbers are divisible by 60:

-60 ÷ 1680 = -1/28

So, the simplified expression is -1/28.