Question

(7 1/2 •2 2/3-12 1/4: 7/9):6+3 1/8+5 2/7=? срочно пожалуйста

Answer 1

(7 1/2*2 2/3- 12 1/4:7/9):6 +3 1/8+ 5 2/7=9 5/42

1) 7 1/2*2 2/3=15/2*8/3=20

2)   12 1/4:7/9=49/4*9/7=63/4=15 3/4

3) 20-15 3/4=5 - 3/4= 4 4/4-3/4=4 1/4

4) 4 1/4:6= 17/4*1/6=17/24

5) 17/24+ 3 1/8=17/24+25/8=17/24+75/24=92/24=23/6=3 5/6

6) 23/6+5 2/7=23/6+37/7=161/42+222/42=383/42=9 5/42

Answer 2

Ответ:

(7 1/2*2 2/3- 12 1/4:7/9):6 +3 1/8+ 5 2/7=9 5/42

1) 7 1/2*2 2/3=15/2*8/3=20

2)   12 1/4:7/9=49/4*9/7=63/4=15 3/4

3) 20-15 3/4=5 - 3/4= 4 4/4-3/4=4 1/4

4) 4 1/4:6= 17/4*1/6=17/24

5) 17/24+ 3 1/8=17/24+25/8=17/24+75/24=92/24=23/6=3 5/6

6) 23/6+5 2/7=23/6+37/7=161/42+222/42=383/42=9 5/42

Пошаговое объяснение:

спасибо огромное

Answer 3

To solve the given expression, let's break it down step by step:

Step 1: Simplify the expression within the parentheses

The expression within the parentheses is: 7 + 1/2 * 2 + 2/3 - 12 + 1/4

To simplify this, we need to perform the multiplication and addition/subtraction operations in the correct order.

1/2 * 2 = 1 2/3 - 12 = -11 1/3 1/4 remains the same

So, the simplified expression within the parentheses is: 7 + 1 - 11 1/3 + 1/4

Step 2: Simplify the expression outside the parentheses

The expression outside the parentheses is: (7 + 1 - 11 1/3 + 1/4) : 6 + 3 + 1/8 + 5 + 2/7

To simplify this, we need to perform the division and addition operations in the correct order.

(7 + 1 - 11 1/3 + 1/4) : 6 = -1 1/2 3 + 1/8 remains the same 5 remains the same 2/7 remains the same

So, the simplified expression outside the parentheses is: -1 1/2 + 3 + 1/8 + 5 + 2/7

Step 3: Add all the terms together

Now, let's add all the terms together:

-1 1/2 + 3 + 1/8 + 5 + 2/7 = -1/2 + 3 + 1/8 + 5 + 2/7

To add fractions, we need to find a common denominator. The common denominator for 1/8 and 2/7 is 56.

-1/2 + 3 + 1/8 + 5 + 2/7 = -28/56 + 168/56 + 7/56 + 280/56 + 16/56

Now, we can add the fractions:

-28/56 + 168/56 + 7/56 + 280/56 + 16/56 = 443/56

So, the final answer is 443/56.

Please note that the answer is in fraction form. If you need a decimal approximation, you can divide 443 by 56 to get the decimal value.