Question

(18 1/4-17 5/6)*8 4/10+6 5/10

Answer 1

Прости, вот перерешала

Answer 2

To solve the expression (18 1/4 - 17 5/6) * 8 4/10 + 6 5/10, we'll 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)

Step 1: Perform the subtraction inside the parentheses. 18 1/4 - 17 5/6 = (18 + 1/4) - (17 + 5/6) = 18.25 - 17.8333... (recurring decimal)

Step 2: Perform the multiplication. (18.25 - 17.8333...) * 8 4/10 + 6 5/10 = (0.4166...) * 8 4/10 + 6 5/10

Step 3: Convert the mixed number 8 4/10 to an improper fraction. 8 4/10 = 8 + 4/10 = 8 + 2/5 = 8 2/5 = 42/5

Step 4: Perform the multiplication. (0.4166...) * 42/5 + 6 5/10

Step 5: Convert the mixed number 6 5/10 to an improper fraction. 6 5/10 = 6 + 5/10 = 6 + 1/2 = 6 1/2 = 13/2

Step 6: Perform the addition. (0.4166...) * 42/5 + 13/2

Now, let's calculate the result. Since the decimal 0.4166... goes on infinitely, we'll round it to a reasonable number of decimal places.

Step 7: Calculate the result. (0.4166...) * 42/5 ≈ 7.78 (rounded to two decimal places)

7.78 + 13/2

To add these two fractions, find a common denominator, which is 2 for the fraction 13/2.

(7.78 * 2)/2 + 13/2 = (15.56 + 13)/2 = 28.56/2 = 14.28

So, the final result is approximately 14.28.