Question

B:6/7-5 4/9:4 2/3 (/-дробь)

Answer 1

Подробное решение на фото

Answer 2

The expression you provided seems to be a sequence of mathematical operations involving fractions. Let's break it down step by step:

1. B: 6/7 - 5
2. 4/9: 4
3. 2/3

Step 1: B: 6/7 - 5

Here, "B" might refer to some previous context or equation that is not given. Since there's no specific context provided, I'll assume "B" is just a variable. The expression would then be:

B = 6/7 - 5

To perform this calculation, we need to find a common denominator for the subtraction. The common denominator for 7 and 1 is 7. So:

B = (6/7) - (5 * 7/7) B = (6/7) - (35/7) B = (6 - 35)/7 B = -29/7

Step 2: 4/9: 4

In this step, we have division (denoted by ":") of 4/9 by 4.

4/9 ÷ 4 = (4/9) * (1/4) [Dividing by a number is equivalent to multiplying by its reciprocal] = 4/36 = 1/9

Step 3: 2/3

No operation is specified for this fraction, so it remains as 2/3.

Putting it all together:

B = -29/7 1/9 2/3

Please note that the value of "B" depends on the context of the problem, and without more information or a specific equation, we can't provide an exact numerical value for "B."