Question

(- 2/5) × 2 1/2 × (-1 1/3 × 1/2)​

Answer 1

Ответ: 2/3

Пошаговое объяснение:

(- 2/5) × 2 1/2 × (-1 1/3 × 1/2)​=2/5*5/2*4/3*1/2=4/6=2/3

Answer 2

To calculate this expression, you can follow these steps:

Step 1: Convert mixed numbers to improper fractions if necessary. Step 2: Perform the multiplication and division operations from left to right.

Let's break it down step by step:

Step 1:

• (-2/5) is already in fraction form.
• 2 1/2 can be converted to an improper fraction as follows: 2 1/2 = (2 * 2 + 1)/2 = 5/2.
• (-1 1/3) can be converted to an improper fraction as follows: -1 1/3 = (-1 * 3 + 1)/3 = (-2/3).

Now, the expression becomes: (-2/5) × (5/2) × (-2/3) × (1/2)

Step 2: Perform the multiplication and division operations from left to right:

• (-2/5) × (5/2) = -1 (the numerator and denominator cancel out).
• -1 × (-2/3) = 2/3 (negatives cancel out).
• 2/3 × (1/2) = 1/3

So, the result of the expression is 1/3.