Question

49:(2 7/18+4 11/18) - (4 1/4 - 2 3/4) : 5​

Answer 1

49:(2 7/18+4 11/18)-(4 1/4-2 3/4):5= 49:6 18/18-2/4:5=49:7-0,5:5=7-0,5:5=7-0,1=6,9

Answer 2

49:7-7:5=7-1,4=5,6 – неверно

2 7/18+4 11/18=6 18/18=7

4 1/4 - 2 3/4= 6 4/4=7

Answer 3

To solve the expression, follow the order of operations (PEMDAS/BODMAS):

P: Parentheses/Brackets E: Exponents/Orders (e.g., powers and square roots) MD: Multiplication and Division (left to right) AS: Addition and Subtraction (left to right)

First, let's simplify the expressions within the parentheses:

2 7/18 + 4 11/18 = 7 18/18 + 4 11/18 = 7 1 + 4 11/18 = 11 11/18

4 1/4 - 2 3/4 = 4 - 2 + 1/4 - 3/4 = 2 - 2/4 = 2 - 1/2 = 1 1/2

Now, the expression becomes:

49:(11 11/18 - 1 1/2) : 5

Next, we need to perform the subtraction inside the first set of parentheses:

11 11/18 - 1 1/2 = 11 11/18 - 1 9/18 = 10 2/18 = 10 1/9

Now the expression is:

49: (10 1/9) : 5

Now, perform the division:

49 ÷ 10 1/9 = 49 ÷ (9 * 10 + 1) = 49 ÷ 91/9

To divide by a fraction, you can multiply by its reciprocal:

49 ÷ 91/9 = 49 * 9/91 = 441/91

Now, divide the result by 5:

(441/91) ÷ 5 = (441/91) * (1/5) = (441/455)

So, the simplified answer is 441/455.