Use the properties of operations and rules for multiplying and dividing to solve:(−2)×(1/5)÷(2/3)×(−5/6)÷(3/4) (1 point)

1 answer

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 follow the order of operations and also simplify where possible.

  1. Rewrite the division as multiplication by the reciprocal: \[ (-2) \times \left(\frac{1}{5}\right) \times \left(\frac{3}{2}\right) \times \left(-\frac{5}{6}\right) \times \left(\frac{4}{3}\right) \]

  2. Now we can group all the multiplications together: \[ (-2) \times \left(-\frac{5}{6}\right) \times \left(\frac{1}{5}\right) \times \left(\frac{3}{2}\right) \times \left(\frac{4}{3}\right) \]

  3. Let's simplify each multiplication step-by-step:

    • First, calculate \((-2) \times \left(-\frac{5}{6}\right)\): \[ -2 \times -\frac{5}{6} = \frac{10}{6} = \frac{5}{3} \]

    • Now, multiply by \(\frac{1}{5}\): \[ \frac{5}{3} \times \frac{1}{5} = \frac{5 \times 1}{3 \times 5} = \frac{1}{3} \]

    • Now, multiply by \(\frac{3}{2}\): \[ \frac{1}{3} \times \frac{3}{2} = \frac{1 \times 3}{3 \times 2} = \frac{1}{2} \]

    • Finally, multiply by \(\frac{4}{3}\): \[ \frac{1}{2} \times \frac{4}{3} = \frac{1 \times 4}{2 \times 3} = \frac{4}{6} = \frac{2}{3} \]

So, the final answer is \(\frac{2}{3}\).