Question

(10-5 2\3-8,5)÷(-4 2\9+5 5\18)​

Answer 1

Ответ:

−3,66666666666

Пошаговое объяснение:

(10 − 5 × 2 / 3 − 8,5) = −1,83333333333

(−4 × 2 / 9 + 5 × 5 / 18) = 0,5

−1,83333333333 / 0,5 = −3,66666666666

надеюсь правильно

Answer 2

To simplify the expression (10 - 5 2/3 - 8,5) ÷ (-4 2/9 + 5 5/18), let's break it down step by step:

Step 1: Deal with the subtraction and addition within parentheses:

10 - 5 2/3 - 8.5 = 10 - (5 2/3) - 8.5 5 2/3 is equivalent to 17/3. So,

10 - 17/3 - 8.5 = (30/3) - (17/3) - (25/2) Now, let's find a common denominator, which is 6:

(30/3) - (17/3) - (25/2) = (10/1) - (17/3) - (75/6)

Step 2: Add and subtract the fractions:

(10/1) - (17/3) - (75/6)

To subtract fractions, they need a common denominator. In this case, the common denominator is 6. So, let's rewrite the fractions with a common denominator:

(60/6) - (34/6) - (75/6)

Step 3: Subtract the fractions with the common denominator:

(60/6) - (34/6) - (75/6) = (60 - 34 - 75) / 6

Step 4: Continue to simplify:

(60 - 34 - 75) / 6 = (-49) / 6

Step 5: Finally, divide:

(-49) / 6 = -49/6

So, the simplified expression is:

-49/6

Therefore, (10 - 5 2/3 - 8,5) ÷ (-4 2/9 + 5 5/18) = -49/6.