Question

(-5 7/8+9.4)-(12.6-10 3/4)

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

To solve the expression (-5 7/8 + 9.4) - (12.6 - 10 3/4), we need to simplify each term separately and then perform the subtraction. Let's break it down step by step:

1. Convert the mixed numbers into improper fractions: -5 7/8 = -(8 * 5 + 7) / 8 = -47/8 10 3/4 = (4 * 10 + 3) / 4 = 43/4

Now the expression becomes: (-47/8 + 9.4) - (12.6 - 43/4).

2. Perform the addition and subtraction operations:

(-47/8 + 9.4) = (-47/8 + 9.4 * 8/8) = (-47/8 + 75.2/8) = (75.2 - 47) / 8 = 28.2 / 8 = 3.525

(12.6 - 43/4) = (12.6 * 4/4 - 43/4) = (50.4/4 - 43/4) = (50.4 - 43) / 4 = 7.4 / 4 = 1.85

Now the expression becomes: 3.525 - 1.85.

3. Perform the subtraction:

3.525 - 1.85 = 1.675

Therefore, the value of the expression (-5 7/8 + 9.4) - (12.6 - 10 3/4) is 1.675.