Question

1)5 1/7*1 8/27 2)1 8/9*1 1/18 Срочно

Answer 1

1) 5 1/7 · 1 8/27 = 6 2/3

5 целых 1/7 = (5·7+1)/7 = 36/7

1 целая 8/27 = (1·27+8)/27 = 35/27

5 1/7 · 1 8/27 = 36/7 · 35/27 = (4·5)/(1·3) = 20/3 = 6 2/3

Ответ: 6 целых 2/3.

2) 1 8/9 · 1 1/18 · 2 2/3 = 5 77/243

1 целая 8/9 = (1·9+8)/9 = 17/9

1 целая 1/18 = (1·18+1)/18 = 19/18

2 целых 2/3 = (2·3+2)/3 = 8/3

1) 1 8/9 · 1 1/18 = 17/9 · 19/18 = (17·19)/(9·18) = 323/162 = 1 161/162

2) 323/162 · 8/3 = (323·4)/(81·3) = 1292/243 = 5 77/243

Ответ: 5 целых 77/243.

Answer 2

Ответ:

Пошаговое объяснение:

1)

5. 1/7 * 1. 8/27 = 36/7 * 35/27 = 4/1 * 5/3 = 20/3 =

6. 2/3

2)

1. 8/9 * 1. 1/18 * 2. 2/3 =

17/9 * 19/18 * 8/3 =

17/9 * 19/9 * 4/3 =

(17*19*4)/(9*9*3) = 1292/243 = 5. 77/243

Answer 3

Calculation 1: 5 + 1/7 * 1 + 8/27

To calculate the expression 5 + 1/7 * 1 + 8/27, we need to follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

Let's break down the expression step by step:

1. First, we perform the multiplication: 1/7 * 1 = 1/7. 2. Next, we perform the addition: 5 + 1/7 = 36/7. 3. Finally, we perform the addition: 36/7 + 8/27.

To add fractions, we need to find a common denominator. In this case, the common denominator is 189.

Converting the fractions to have a common denominator:

- 36/7 = 972/189 - 8/27 = 56/189

Now, we can add the fractions:

972/189 + 56/189 = 1028/189

Therefore, the result of the expression 5 + 1/7 * 1 + 8/27 is 1028/189.

Calculation 2: 1 + 8/9 * 1 + 1/18

To calculate the expression 1 + 8/9 * 1 + 1/18, we again need to follow the order of operations.

Let's break down the expression step by step:

1. First, we perform the multiplication: 8/9 * 1 = 8/9