Use the properties of operations and rules for multiplying and dividing to solve:

(−2) × (1/5) ÷ (2/3) × (−5/6) ÷ (3/4)

(1 point)
Responses

−1/6

−2/3

1/6

2/3

3 answers

To solve the expression \((-2) \times \left(\frac{1}{5}\right) \div \left(\frac{2}{3}\right) \times \left(-\frac{5}{6}\right) \div \left(\frac{3}{4}\right)\), we will simplify it step by step by applying the properties of operations.

First, we can rewrite the division as multiplication by the reciprocal:

\[ (-2) \times \left(\frac{1}{5}\right) \times \left(\frac{3}{2}\right) \times \left(-\frac{5}{6}\right) \times \left(\frac{4}{3}\right) \]

Next, let's combine the fractions:

\[ (-2) \times \left(\frac{1}{5}\right) \times \frac{3}{2} \times (-\frac{5}{6}) \times \frac{4}{3} \]

Now let's group it together:

\[ = \frac{(-2) \times 1 \times 3 \times (-5) \times 4}{5 \times 2 \times 6 \times 3} \]

Now calculate the numerator:

\[ (-2) \times (-5) = 10 \] \[ 10 \times 1 \times 3 \times 4 = 120 \]

Now calculate the denominator:

\[ 5 \times 2 = 10 \] \[ 10 \times 6 = 60 \] \[ 60 \times 3 = 180 \]

So we have:

\[ \frac{120}{180} \]

We can simplify \(\frac{120}{180}\):

\[ 120 \div 60 = 2 \] \[ 180 \div 60 = 3 \]

Thus,

\[ \frac{120}{180} = \frac{2}{3} \]

So, the answer is:

\[ \boxed{\frac{2}{3}} \]

Use the properties of operations and rules for multiplying and dividing to solve:

(9) ÷ (5/4) × (7/9) × (−5) ÷ (7/2)

(1 point)
Responses

−8

1,225/8

−1,225/8

8

Let's solve the expression step by step:

\[ (9) \div \left(\frac{5}{4}\right) \times \left(\frac{7}{9}\right) \times (-5) \div \left(\frac{7}{2}\right) \]

First, we will rewrite the division as multiplication by the reciprocal:

  1. Rewrite division as multiplication by reciprocals:

\[ 9 \times \left(\frac{4}{5}\right) \times \left(\frac{7}{9}\right) \times (-5) \times \left(\frac{2}{7}\right) \]

Next, let's simplify. Notice that the \(9\) in the numerators and denominators will cancel:

  1. Cancel \(9\):

\[ = 1 \times \left(\frac{4}{5}\right) \times 7 \times (-5) \times \left(\frac{2}{7}\right) \]

The \(7\) in the numerator and the denominator will also cancel:

  1. Cancel \(7\):

\[ = 1 \times \left(\frac{4}{5}\right) \times (-5) \times 2 \] \[ = \left(\frac{4}{5}\right) \times (-5) \times 2 \]

Now, we can multiply the numbers together. First, we multiply \(-5\) and \(2\):

  1. Calculate \(-5 \times 2\):

\[ = \left(\frac{4}{5}\right) \times (-10) = -\frac{40}{5} \]

Now, simplify \(-40/5\):

  1. Simplify:

\[ -40 \div 5 = -8 \]

Thus, the final answer is:

\[ \boxed{-8} \]