Question

4×2÷3-6×3÷7-(-2÷9)+5×10÷21

Answer 1

Ответ:

2 целых 44/63

Пошаговое объяснение:

4×2÷3-6×3÷7-(-2÷9)+5×10÷21=8/3-18/7+2/9+50/21=168/63-162/63+14/63+150/63=170/63=2 целых 44/63

Answer 2

To solve this expression, follow the order of operations, which is typically remembered using the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right).

1. Solve within parentheses, if any. In this case, there are no parentheses.
2. Perform multiplication and division from left to right.

Let's go step-by-step:

Step 1: Multiplication and Division from left to right

• 4 × 2 = 8

• 8 ÷ 3 = 2.666666... (approximately)

• 6 × 3 = 18

• 18 ÷ 7 = 2.571428... (approximately)

• -2 ÷ 9 = -0.222222... (approximately)

• 5 × 10 = 50

• 50 ÷ 21 = 2.380952... (approximately)

Step 2: Addition and Subtraction from left to right

Now, combine the results:

2.666666... - 2.571428... + 0.222222... + 2.380952...

The exact value of the expression is difficult to represent without rounding, so let's round the final answer to a few decimal places:

2.666666... - 2.571428... + 0.222222... + 2.380952... ≈ 2.698412698...

So, the approximate value of the given expression is 2.698.