Question

8 целых 5/12 минус 7/12 умножить на 1 целую 19/21 минус 17/72 умножить на 2/3 СРОЧНОООООО​

Answer 1

Ответ:

*80()091, 0,04*(90)×60=120

Answer 2

Давайте решим этот математический пример по порядку.

Сначала вычтем дроби 8 целых 5/12 минус 7/12: 8 целых 5/12 - 7/12 = 8 целых (5 - 7)/12 = 8 целых -2/12 = 8 целых -1/6

Затем умножим полученную дробь на 1 целую 19/21: (8 целых -1/6) * (1 целая 19/21) = (8 + (-1/6)) * (1 + 19/21) = (48/6 - 1/6) * (21/21 + 19/21) = (47/6) * (40/21)

И, наконец, умножим полученную дробь на 17/72 * 2/3: (47/6) * (40/21) * (17/72) * (2/3) = (47 * 40 * 17 * 2) / (6 * 21 * 72 * 3)

Теперь давайте вычислим это выражение:

Решение:

8 целых 5/12 минус 7/12 = 8 целых -1/6 (8 целых -1/6) * (1 целая 19/21) = (47/6) * (40/21) (47/6) * (40/21) * (17/72) * (2/3) = (47 * 40 * 17 * 2) / (6 * 21 * 72 * 3)

Теперь вычислим это выражение:

(47 * 40 * 17 * 2) / (6 * 21 * 72 * 3) = 0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000#### Calculating the Expression To solve the given expression, we'll follow the order of operations: parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

The given expression is: 8 5/12 - 7/12 * 1 19/21 - 17/72 * 2/3.

Step 1: Convert Mixed Numbers to Improper Fractions

First, let's convert the mixed numbers to improper fractions: - 8 5/12 = (8 * 12 + 5)/12 = 101/12 - 1 19/21 = (1 * 21 + 19)/21 = 40/21

So the expression becomes: 101/12 - 7/12 * 40/21 - 17/72 * 2/3.

Step 2: Perform Multiplication and Subtraction

Next, we'll perform the multiplication and subtraction in the expression.

Multiplication: - 7/12 * 40/21 = (7 * 40)/(12 * 21) = 280/252 = 10/9 - 17/72 * 2/3 = (17 * 2)/(72 * 3) = 34/216 = 17/108

Subtraction: - 101/12 - 10/9 - 17/108

Step 3: Perform Subtraction

Now, we'll perform the subtraction in the expression: - 101/12 - 10/9 - 17/108 = 898/108 - 120/108 - 17/108 = 761/108

Final Answer

So, the result of the given expression 8 5/12 - 7/12 * 1 19/21 - 17/72 * 2/3 is 761/108.