Question

-3 3/4 - (-8 2/9 - (-4,5) : 9/14) • 2 1/4= ??????

Answer 1

Ответ:-1

Пошаговое объяснение:на фоте

Answer 2

Let's break down the expression step by step:

1. -3 3/4: This is a mixed number, which can be converted to an improper fraction. -3 3/4 = -15/4

2. -8 2/9: This is another mixed number, which can also be converted to an improper fraction. -8 2/9 = -74/9

3. -4.5 : This is a decimal number, no conversion needed.

4. 9/14: This is a fraction.

5. Multiplying and dividing have precedence over addition and subtraction, so let's start by dealing with the part inside the parentheses and then move on to the rest of the expression.

   -4.5 : 9/14 = -4.5 * (14/9) = -63/9 = -7

6. Now, substitute this value back into the original expression and perform the calculations:

   -15/4 - (-74/9 - (-7)) * 2 1/4

7. First, subtract the value within the parentheses:

   -15/4 - (-74/9 + 7) * 2 1/4 -15/4 - (653/9) * 2 1/4

8. Multiply the fraction by the mixed number:

   -15/4 - (653/9) * (9/4) -15/4 - 653/4

9. The common denominator for both fractions is 4, so you can directly subtract them:

   (-15 - 653) / 4 -668 / 4 -167

So, the value of the expression is -167.