Question

(−27,31+(−1,96))+(−1/2+(−1/4)).

Answer 1

Ответ: 30,02.

Пошаговое объяснение: 1) -27,31+(-1,96)=-29,27

2) -1/2+(-1/4) (Приведём к общему знаменателю 4; для этого первую дробь домножим на 2, а вторую- на 1)=-2/4+(-1/4)=-3/4

3) -29,27+(-3/4) (Домножим вторую дробь на 25 и переведём её в десятичную)=-29,27+(-75/100)=-29,27+(-0,75)=30,02.

Answer 2

To simplify the given expression, let's break it down step by step:

1. Start with the first set of parentheses: (-27,31 + (-1,96)) = -29.27
2. Next, work with the second set of parentheses: (-1/2 + (-1/4)) = -3/4

Now we can add the results from step 1 and step 2:

-29.27 + (-3/4)

To add these two numbers, you'll want to find a common denominator for the fraction (-3/4) so that you can add it to the decimal (-29.27). The common denominator for 4 and 1 is 4.

Converting the decimal -29.27 to a fraction with a denominator of 4:

-29.27 = -117.08/4

Now the expression becomes:

(-117.08/4) + (-3/4)

Adding the fractions:

(-117.08 - 3) / 4 = -120.08 / 4 = -30.02

So, the simplified result of the given expression is approximately -30.02.