Question

40×(3 1/5-2 2/4) решение и ответ

Answer 1

Ответ:

28

Пошаговое объяснение:

на фото

Answer 2

Calculation: 40 × (3 + 1/5 - 2 + 2/4)

To solve the given expression, we can follow the order of operations (PEMDAS/BODMAS) which states that we should perform operations inside parentheses first, then any exponents, followed by multiplication and division from left to right, and finally addition and subtraction from left to right.

Let's break down the expression step by step:

1. Inside the parentheses, we have: - 3 + 1/5 - 2 + 2/4

2. Simplifying the addition and subtraction from left to right: - 3 + 1/5 = 3 1/5 - 3 1/5 - 2 = 1 1/5 - 1 1/5 + 2/4 = 1 1/5 + 1/2

3. Converting the mixed fraction to an improper fraction: - 1 1/5 = (5 * 1 + 1)/5 = 6/5

4. Adding the fractions: - 6/5 + 1/2 = (6 * 2 + 1 * 5)/(5 * 2) = 17/10

5. Multiplying by 40: - 40 × 17/10 = (40 * 17)/10 = 680/10 = 68

Therefore, the solution to the expression 40 × (3 + 1/5 - 2 + 2/4) is 68.

Solution:

The solution to the expression 40 × (3 + 1/5 - 2 + 2/4) is 68.

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