Question

Помогите пожайлуста.Dрешите.D5/6+7/12+0,75-3/4(1-0,25)+(1-1/3)удачи.D

Answer 1

В скобке отдельно?......

Answer 2

To solve the expression D5/6 + 7/12 + 0.75 - 3/4(1 - 0.25) + (1 - 1/3), we can follow the order of operations (PEMDAS/BODMAS) to simplify the expression step by step.

Step 1: Simplify within parentheses

The expression within the first set of parentheses is 1 - 0.25, which equals 0.75.

Step 2: Simplify within parentheses

The expression within the second set of parentheses is 1 - 1/3. To simplify this, we need to find a common denominator for 1 and 1/3, which is 3. So, 1 can be written as 3/3. Subtracting 1/3 from 3/3 gives us 2/3.

Step 3: Simplify multiplication

Next, we need to simplify the multiplication 3/4(1 - 0.25). To do this, we first subtract 0.25 from 1, which gives us 0.75. Then, we multiply 3/4 by 0.75. Multiplying fractions is done by multiplying the numerators and denominators separately. So, 3/4 multiplied by 0.75 is (3 * 0.75) / (4 * 1), which equals 2.25/4.

Step 4: Simplify addition and subtraction

Now, we can substitute the simplified values back into the original expression: D5/6 + 7/12 + 0.75 - 2.25/4 + 2/3.

Step 5: Find a common denominator

To add and subtract fractions, we need to find a common denominator. The denominators in this expression are 6, 12, and 4. The least common multiple (LCM) of these numbers is 12. So, we need to convert all the fractions to have a denominator of 12.

Step 6: Convert fractions to have a common denominator

Converting the fractions: - D5/6 can be written as (5/6) * (2/2) = 10/12. - 7/12 remains the same. - 0.75 can be written as 0.75 * (12/12) = 9/12. - 2.25/4 can be written as (2.25/4) * (3/3) = 6.75/12. - 2/3 can be written as (2/3) * (4/4) = 8/12.

Step 7: Simplify the expression

Now that all the fractions have a common denominator of 12, we can add and subtract them: 10/12 + 7/12 + 9/12 - 6.75/12 + 8/12.

Adding the numerators together, we get: (10 + 7 + 9 - 6.75 + 8) / 12 = 27.25/12.

Therefore, the simplified expression is 27.25/12.

Please note that the answer is provided in fraction form. If you prefer a decimal approximation, you can divide 27.25 by 12 to get the decimal value.