Question

Решите выражение и выберите правильный ответ. ( 4 15 ÷ 8 45 − 7 9 ) ÷ 11 12 =

Answer 1

Ответ:

В приложении

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Answer 2

To solve the expression, follow the order of operations (PEMDAS/BODMAS):

1. Parentheses/Brackets
2. Exponents/Orders
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Let's solve the expression step by step:

Step 1: Simplify inside the parentheses first.

(4/15 ÷ 8/45 - 7/9)

Step 2: Perform the divisions.

(4/15 ÷ 8/45) = (4/15 * 45/8) = 3/2

Step 3: Continue with the subtraction.

(3/2 - 7/9)

Step 4: Find the common denominator (18).

(3/2 * 9/9 - 7/9) = (27/18 - 7/9)

Step 5: Perform the subtraction.

(27/18 - 14/18) = 13/18

Now we have:

(13/18) ÷ (11/12)

Step 6: To divide fractions, invert the second fraction and multiply.

(13/18) * (12/11) = (13/9)

The final answer is 13/9.