Question

СРОЧНО!!!(2 8/9+1 7/15)*(1/7+8/49=?​

Answer 1

вот ответ на задание-,- вроде бы правильно

Answer 2

Ответ:

1,3

Объяснение:

28/9=3,1

17/15=1,13

3,1+1,13=4,23

1/7=0,1

8/49=0,2

0,1+0,2=0,3

4,23*0,3=1,3

Answer 3

To solve this expression, we'll follow the order of operations, which is also known as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right).

Let's simplify the expression step by step:

Step 1: Convert mixed numbers to improper fractions. 2 8/9 can be converted to an improper fraction as follows: 2 * 9 + 8 = 18 + 8 = 26 So, 2 8/9 = 26/9.

1 7/15 can be converted to an improper fraction as follows: 1 * 15 + 7 = 15 + 7 = 22 So, 1 7/15 = 22/15.

Step 2: Perform the addition inside the parentheses. (1/7 + 8/49) can be calculated as follows: 1/7 + 8/49 = (7/49 + 8/49) = 15/49.

Step 3: Perform the multiplication. (26/9) * (15/49) can be calculated as follows: (26/9) * (15/49) = (26 * 15) / (9 * 49) = 390/441.

Therefore, (2 8/9 + 1 7/15) * (1/7 + 8/49) = 390/441.