Question

8/2*7/4+21/1+3/7 помогите пожалуйста

Answer 1

8:2×7:4+21:1+3:7
1)8:2=4
2)4×7=28
3)28:4=7
5)21:1=21
6)3:7= 3/7 (дробь)
7)7+21=28
8)21/1+ 3/7=199/7

Answer 2

8/2*7/4+21/1+3/7=7+21+3/7=28 3/7

Answer 3

Calculation: 8/2 * 7/4 + 21/1 + 3/7

To solve this calculation, we need to follow the order of operations, which is commonly known as PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

Let's break down the calculation step by step:

1. 8/2 * 7/4: We start by performing the division operations from left to right. 8 divided by 2 equals 4, and 7 divided by 4 equals 1.75. Then, we multiply these results together: 4 * 1.75 = 7.

2. 7 + 21/1: Next, we perform the addition operation. 7 plus 21 equals 28.

3. 28 + 3/7: Finally, we perform the division operation. 3 divided by 7 equals approximately 0.4286. Then, we add this result to 28: 28 + 0.4286 = 28.4286.

Therefore, the result of the calculation 8/2 * 7/4 + 21/1 + 3/7 is approximately 28.4286.

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