Question

7.5/18 - 3.2/27 - 11/54 срочно​

Answer 1

Ответ:

17/180

Пошаговое объяснение:

.......................

Answer 2

7.5/18 - 3.2/27 = 22,5/54 - 6,4/54 = 16,1/54

16,1/54 - 11/54 = 5,1/54

Answer 3

To solve the expression 7.5/18 + 3.2/27 + 11/54, we need to find a common denominator for the fractions and then add them together.

Finding a Common Denominator

The denominators of the fractions in the expression are 18, 27, and 54. To find a common denominator, we need to find the least common multiple (LCM) of these numbers.

The LCM of 18, 27, and 54 is 54. Therefore, we can rewrite the expression with all fractions having a denominator of 54:

7.5/18 + 3.2/27 + 11/54 = (7.5 * 3)/54 + (3.2 * 2)/54 + 11/54

Adding the Fractions

Now that we have a common denominator of 54, we can add the fractions together:

(7.5 * 3)/54 + (3.2 * 2)/54 + 11/54 = 22.5/54 + 6.4/54 + 11/54

To add the fractions, we simply add the numerators together while keeping the denominator the same:

22.5/54 + 6.4/54 + 11/54 = (22.5 + 6.4 + 11)/54

Simplifying the Result

Now we can simplify the numerator:

(22.5 + 6.4 + 11)/54 = 39.9/54

To simplify the fraction, we can divide both the numerator and denominator by their greatest common divisor (GCD). In this case, the GCD of 39.9 and 54 is 0.1.

Dividing both the numerator and denominator by 0.1, we get:

39.9/54 = 399/540

Therefore, the simplified result of the expression 7.5/18 + 3.2/27 + 11/54 is 399/540.

Please note that the result has been simplified, but it is still a fraction. If you need a decimal approximation, you can divide the numerator by the denominator: 399 ÷ 540 ≈ 0.7389.

I hope this helps! Let me know if you have any further questions.