Question

1. (-2целых3/7 +(-7целых4/7))+(-1целых4/9+(-3целых5/9))ПОМОГИТЕ ПОЖАЛУЙСТА!!

Answer 1

Ответ:

-(2целых+7целых+3/7+4/7)-(1целых+3целых+4/9+5/9)=-10-5=-15

Пошаговое объяснение:

Answer 2

Ответ:

$( - 2 \frac{3}{7} - 7 \frac{4}{7} ) + ( - 1 \frac{4}{9} - 3 \frac{5}{9} ) = - 10 - 5 = - 15$

Answer 3

To solve the expression: 1 + (-2 3/7 + (-7 4/7)) + (-1 4/9 + (-3 5/9), we can follow the order of operations (PEMDAS/BODMAS) and simplify step by step.

Step 1: Simplify the innermost parentheses

The expression inside the innermost parentheses is -2 3/7 + (-7 4/7). To add these two mixed numbers, we need to have the same denominator. The common denominator is 7.

-2 3/7 + (-7 4/7) = -2 3/7 + (-7 4/7) = -2 3/7 - 7 4/7 = -9 7/7

Step 2: Simplify the next set of parentheses

The expression inside the next set of parentheses is -1 4/9 + (-3 5/9). Again, we need to have the same denominator to add these two mixed numbers. The common denominator is 9.

-1 4/9 + (-3 5/9) = -1 4/9 + (-3 5/9) = -1 4/9 - 3 5/9 = -4 9/9

Step 3: Simplify the remaining expression

Now, we can add the results from Step 1 and Step 2.

-9 7/7 + (-4 9/9) = -9 7/7 - 4 9/9 = -13 16/9

Therefore, the simplified expression is -13 16/9.

Please note that the above solution is based on the assumption that the expression provided is a mathematical expression involving mixed numbers. If there is any additional context or different interpretation of the expression, please let me know.