Question

Выполните действия : 297/1372 : 363/392 49\72 : 56\81 Срочно!

Answer 1

Тебе столбиком??Я не понела..

Answer 2

Calculating Fractions

To solve the given arithmetic operations involving fractions, we can follow these steps:

1. Addition: - To add fractions, we need to have a common denominator. Once we have a common denominator, we can add the numerators together while keeping the denominator the same.

2. Subtraction: - Similar to addition, we need a common denominator to subtract fractions. Once we have a common denominator, we can subtract the numerators while keeping the denominator the same.

3. Multiplication: - To multiply fractions, we simply multiply the numerators together to get the new numerator, and multiply the denominators together to get the new denominator.

4. Division: - To divide fractions, we can multiply the first fraction by the reciprocal of the second fraction.

Let's solve the given operations step by step.

Addition:

- 297/1372 + 363/392

To add these fractions, we need to find a common denominator. The common denominator for 1372 and 392 is 1372 * 392 = 537664. Then we can proceed with the addition.

Result: - 297/1372 + 363/392 = (297*392 + 363*1372) / (1372*392)

Subtraction:

- 49/72 - 56/81

Similar to addition, we need to find a common denominator to subtract these fractions.

Result: - 49/72 - 56/81 = (49*81 - 56*72) / (72*81)

Multiplication:

- 49/72 * 56/81

To multiply these fractions, we simply multiply the numerators together to get the new numerator, and multiply the denominators together to get the new denominator.

Result: - 49/72 * 56/81 = (49*56) / (72*81)

Division:

- 49/72 ÷ 56/81

To divide these fractions, we can multiply the first fraction by the reciprocal of the second fraction.

Result: - 49/72 ÷ 56/81 = 49/72 * 81/56

Now, let's calculate the results for each of these operations.