Question

2 3/4-(-1 1/2)+(-5/6)-(-3/8)-4 2/3= Плс помогите​

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

To solve the equation 2 + 3/4 - (-1 + 1/2) + (-5/6) - (-3/8) - 4 + 2/3, we can follow the order of operations (PEMDAS/BODMAS) to simplify the expression step by step.

Step 1: Simplify within parentheses

- -1 + 1/2 can be simplified to -1/1 + 1/2. To add fractions, we need a common denominator, which is 2 in this case. So, -1/1 + 1/2 becomes -2/2 + 1/2. - Simplifying further, we get -2/2 + 1/2 = -1/2.

Step 2: Simplify the expression without parentheses

Now, we can substitute the simplified value of -1 + 1/2 back into the original expression and continue simplifying: - 2 + 3/4 - (-1 + 1/2) + (-5/6) - (-3/8) - 4 + 2/3 becomes 2 + 3/4 - (-1/2) + (-5/6) - (-3/8) - 4 + 2/3.

Step 3: Simplify the expression with negative signs

To simplify expressions with negative signs, we can rewrite them as addition: - -(-1/2) can be rewritten as +(1/2). - -(-5/6) can be rewritten as +(5/6). - -(-3/8) can be rewritten as +(3/8).

Step 4: Combine like terms

Now, we can combine the like terms in the expression: - 2 + 3/4 + 1/2 + 5/6 + 3/8 - 4 + 2/3.

Step 5: Convert all fractions to have a common denominator

To add or subtract fractions, we need a common denominator. In this case, the least common denominator (LCD) is 24. We can convert all the fractions to have a denominator of 24: - 2 remains as 2/1. - 3/4 becomes 18/24. - 1/2 becomes 12/24. - 5/6 becomes 20/24. - 3/8 becomes 9/24. - 4 becomes 96/24. - 2/3 becomes 16/24.

Step 6: Add or subtract the fractions

Now, we can add or subtract the fractions: - 2/1 + 18/24 + 12/24 + 20/24 + 9/24 - 96/24 + 16/24.

Step 7: Simplify the expression

Finally, we can simplify the expression by adding or subtracting the fractions: - 2/1 + 18/24 + 12/24 + 20/24 + 9/24 - 96/24 + 16/24 = -19/24.

Therefore, the solution to the equation 2 + 3/4 - (-1 + 1/2) + (-5/6) - (-3/8) - 4 + 2/3 is -19/24.