Question

-6,6:(2 4/7+1/7×(-5))-3,2= ​

Answer 1

Ответ:

Пошаговое объяснение:

-6,6:(2 4/7+1/7×(-5))-3,2

-33/5:(18/7-5/7)-16/5

-33/5:13/7-16/5

-33/5x7/13-16/5

-231/65-16/5

-439/65

Answer 2

Let's break down the expression step by step:

1. First, simplify the expression inside the parentheses: 2 4/7 + 1/7 × (-5)

2. Calculate the product inside the parentheses: 1/7 × (-5) = -5/7

3. Now, add the two fractions: 2 4/7 + (-5/7)

4. To add these fractions, we need a common denominator, which is 7 in this case. So, convert 2 to a fraction with a denominator of 7: 2 = 14/7

5. Now, add the fractions: (14/7 + 4/7) + (-5/7) = 18/7 - 5/7

6. Finally, subtract the fractions: (18/7 - 5/7) = 13/7

So, the result of the expression is: 13/7 - 3.2

To subtract a decimal from a fraction, you can convert the decimal to a fraction with the same denominator as the fraction: 3.2 = 3 2/10 = 3 1/5 = (3 * 5/5) + (1/5) = 15/5 + 1/5 = 16/5

Now, subtract the fractions: (13/7) - (16/5)

To subtract fractions, you need a common denominator, which in this case is 35. So, convert both fractions to have a denominator of 35: (13/7) × (5/5) = 65/35 (16/5) × (7/7) = 112/35

Now, subtract the fractions: (65/35) - (112/35) = (65 - 112)/35 = -47/35

So, the final result is -47/35.