Question

12-(3 5/7 + 2 4/7) - 1 6/7

Answer 1

Ответ:

там всё по действиям надеюсь поймёшь подчерк:) там ошибка зайди в комменты и там правильно)

Answer 2

12-(3 5/7 + 2 4/7) - 1 6/7=

$\displaystyle =12-5\frac{9}{7} -1\frac{6}{7} =\\\\=12-6\frac{15}{7} =12-8\frac{1}{7} =11\frac{7}{7} -8\frac{1}{7} =3\frac{6}{7}$

Answer 3

To solve the expression 12 - (3 5/7 + 2 4/7) - 1 6/7, you can follow these steps:

1. First, add the fractions inside the parentheses: 3 5/7 + 2 4/7 = 5 9/7

2. Now, subtract this result from 12: 12 - 5 9/7 = 12 - (5 + 9/7)

3. To subtract the mixed number from 12, you need to make sure they have the same denominator. The denominator is 7 in this case. So, convert 12 into a fraction with a denominator of 7: 12 = 12/1 * 7/7 = 84/7

4. Now subtract the fractions: 84/7 - (5 + 9/7) = 84/7 - (35/7 + 9/7)

5. Combine the fractions inside the parentheses: 84/7 - (44/7)

6. Finally, subtract the fractions: 84/7 - 44/7 = (84 - 44)/7 = 40/7

7. Now, subtract 1 6/7 from the result: 40/7 - 1 6/7

To subtract mixed numbers, make sure they have the same denominator: 40/7 - 7/7 = 33/7

So, the final result is 33/7, which is also equivalent to the mixed number 4 5/7.