Question

(-2,81)+12,009-/5,4/

Answer 1

(-2,81)+12,009-/5,4/=12,009-5,4-2,81=3,779

Answer 2

It seems like you're trying to perform some mathematical operations with these numbers, but the expression is a bit unclear. Let's break it down step by step:

1. (-2,81) is not a standard numerical format. If you meant to write a negative number, it should be written as -2.81.

2. 12,009- is not a complete operation. It seems like you're trying to subtract something, but there's no value after the minus sign.

3. /5,4/ appears to be division, but the comma is not commonly used as a decimal separator. If you meant to use a period (.), the expression would be 5.4.

Please provide a clearer expression, or let me know what specific mathematical operation you'd like to perform, and I'll be happy to help you calculate it.